51984448915 has 32 divisors (see below), whose sum is σ = 71536711680. Its totient is φ = 35524829184.

The previous prime is 51984448909. The next prime is 51984448933.

51984448915 is nontrivially palindromic in base 10.

51984448915 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 51984448915 - 2³ = 51984448907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51984448915.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15613971 + ... + 15617299.

It is an arithmetic number, because the mean of its divisors is an integer number (2235522240).

Almost surely, 2^51984448915 is an apocalyptic number.

51984448915 is a deficient number, since it is larger than the sum of its proper divisors (19552262765).

51984448915 is a wasteful number, since it uses less digits than its factorization.

51984448915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731.

The product of its digits is 8294400, while the sum is 58.

The spelling of 51984448915 in words is "fifty-one billion, nine hundred eighty-four million, four hundred forty-eight thousand, nine hundred fifteen".