51043502915 has 16 divisors (see below), whose sum is σ = 64868011488. Its totient is φ = 38425207296.

The previous prime is 51043502899. The next prime is 51043502947. The reversal of 51043502915 is 51920534015.

51043502915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51043502915 - 2⁴ = 51043502899 is a prime.

It is a super-2 number, since 2×51043502915² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397004 + ... + 509606.

It is an arithmetic number, because the mean of its divisors is an integer number (4054250718).

Almost surely, 2^51043502915 is an apocalyptic number.

51043502915 is a deficient number, since it is larger than the sum of its proper divisors (13824508573).

51043502915 is a wasteful number, since it uses less digits than its factorization.

51043502915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117958.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 51043502915 in words is "fifty-one billion, forty-three million, five hundred two thousand, nine hundred fifteen".