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3690037376809 = 7419721992
BaseRepresentation
bin110101101100100111010…
…111011111011100101001
3111001202122001022222101221
4311230213113133130221
5440424144032024214
611503102455142041
7530411365120000
oct65544727373451
914052561288357
103690037376809
1111a2a3299a093
124b71a2074921
13209c79c68224
14ca855007c37
1565ebdd72e24
hex35b275df729

3690037376809 has 45 divisors (see below), whose sum is σ = 4348601817207. Its totient is φ = 3131020669392.

The previous prime is 3690037376791. The next prime is 3690037376821. The reversal of 3690037376809 is 9086737300963.

The square root of 3690037376809 is 1920947.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3615493088025 + 74544288784 = 1901445^2 + 273028^2 .

It is not a de Polignac number, because 3690037376809 - 217 = 3690037245737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3690037376009) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 18542901292 + ... + 18542901490.

Almost surely, 23690037376809 is an apocalyptic number.

3690037376809 is the 1920947-th square number.

3690037376809 is the 960474-th centered octagonal number.

It is an amenable number.

3690037376809 is a deficient number, since it is larger than the sum of its proper divisors (658564440398).

3690037376809 is an frugal number, since it uses more digits than its factorization.

3690037376809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 61.

The spelling of 3690037376809 in words is "three trillion, six hundred ninety billion, thirty-seven million, three hundred seventy-six thousand, eight hundred nine".

Divisors: 1 7 49 197 199 343 1379 1393 2401 9653 9751 38809 39203 39601 67571 68257 271663 274421 277207 472997 477799 1901641 1920947 1940449 7722991 7801397 13311487 13446629 13583143 54060937 54609779 93180409 94126403 95082001 378426559 382268453 1536875209 2648985913 2675879171 10758126463 18542901391 18731154197 75306885241 527148196687 3690037376809