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1608681084249 = 3536227028083
BaseRepresentation
bin10111011010001100110…
…111010101010101011001
312200210021202021020211010
4113122030313111111121
5202324034324143444
63231003510324133
7224136421413411
oct27321467252531
95623252236733
101608681084249
11570268596588
1221b934059649
13b890c5b4795
1457c09607641
152bca37b72b9
hex1768cdd5559

1608681084249 has 4 divisors (see below), whose sum is σ = 2144908112336. Its totient is φ = 1072454056164.

The previous prime is 1608681084229. The next prime is 1608681084259. The reversal of 1608681084249 is 9424801868061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1608681084249 - 216 = 1608681018713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1608681084229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268113514039 + ... + 268113514044.

It is an arithmetic number, because the mean of its divisors is an integer number (536227028084).

Almost surely, 21608681084249 is an apocalyptic number.

It is an amenable number.

1608681084249 is a deficient number, since it is larger than the sum of its proper divisors (536227028087).

1608681084249 is an equidigital number, since it uses as much as digits as its factorization.

1608681084249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536227028086.

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 1608681084249 in words is "one trillion, six hundred eight billion, six hundred eighty-one million, eighty-four thousand, two hundred forty-nine".

Divisors: 1 3 536227028083 1608681084249