51958885915 has 16 divisors (see below), whose sum is σ = 64000296576. Its totient is φ = 40480848000.

The previous prime is 51958885907. The next prime is 51958885919.

51958885915 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51958885915 - 2³ = 51958885907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51958885919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812547 + ... + 874156.

It is an arithmetic number, because the mean of its divisors is an integer number (4000018536).

Almost surely, 2^51958885915 is an apocalyptic number.

51958885915 is a deficient number, since it is larger than the sum of its proper divisors (12041410661).

51958885915 is a wasteful number, since it uses less digits than its factorization.

51958885915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686870.

The product of its digits is 25920000, while the sum is 64.

The spelling of 51958885915 in words is "fifty-one billion, nine hundred fifty-eight million, eight hundred eighty-five thousand, nine hundred fifteen".