51352231872656 has 80 divisors (see below), whose sum is σ = 116894871999360. Its totient is φ = 21545340149760.

The previous prime is 51352231872581. The next prime is 51352231872673. The reversal of 51352231872656 is 65627813225315.

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, 47289200 + ... + 48362928.

It is an arithmetic number, because the mean of its divisors is an integer number (1461185899992).

Almost surely, 2^{51352231872656} is an apocalyptic number.

It is an amenable number.

51352231872656 is an abundant number, since it is smaller than the sum of its proper divisors (65542640126704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51352231872656 is a wasteful number, since it uses less digits than its factorization.

51352231872656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094664 (or 1094658 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 56.

The spelling of 51352231872656 in words is "fifty-one trillion, three hundred fifty-two billion, two hundred thirty-one million, eight hundred seventy-two thousand, six hundred fifty-six".