51601072715 has 8 divisors (see below), whose sum is σ = 64056504240. Its totient is φ = 39857380192.

The previous prime is 51601072673. The next prime is 51601072729. The reversal of 51601072715 is 51727010615.

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 51601072715 - 2¹⁸ = 51600810571 is a prime.

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, 177934589 + ... + 177934878.

It is an arithmetic number, because the mean of its divisors is an integer number (8007063030).

Almost surely, 2^51601072715 is an apocalyptic number.

51601072715 is a deficient number, since it is larger than the sum of its proper divisors (12455431525).

51601072715 is a wasteful number, since it uses less digits than its factorization.

51601072715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355869501.

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 51601072715 in words is "fifty-one billion, six hundred one million, seventy-two thousand, seven hundred fifteen".