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61796440495 = 517727016947
BaseRepresentation
bin111001100011010110…
…101101100110101111
312220111200220102211101
4321203112231212233
52003024342043440
644220000103531
74315242035356
oct714326554657
9186450812741
1061796440495
1124231530429
12bb87604ba7
135a9a9a202a
142dc32c099d
15191a30669a
hexe635ad9af

61796440495 has 8 divisors (see below), whose sum is σ = 78517830384. Its totient is φ = 46529084544.

The previous prime is 61796440481. The next prime is 61796440513. The reversal of 61796440495 is 59404469716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61796440495 - 227 = 61662222767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363508389 + ... + 363508558.

It is an arithmetic number, because the mean of its divisors is an integer number (9814728798).

Almost surely, 261796440495 is an apocalyptic number.

61796440495 is a deficient number, since it is larger than the sum of its proper divisors (16721389889).

61796440495 is a wasteful number, since it uses less digits than its factorization.

61796440495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727016969.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 61796440495 in words is "sixty-one billion, seven hundred ninety-six million, four hundred forty thousand, four hundred ninety-five".

Divisors: 1 5 17 85 727016947 3635084735 12359288099 61796440495