51231694804224 has 288 divisors, whose sum is σ = 163382970240000. Its totient is φ = 14068198932480.

The previous prime is 51231694804207. The next prime is 51231694804259. The reversal of 51231694804224 is 42240849613215.

It is a congruent number.

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, 3246849 + ... + 10630400.

It is an arithmetic number, because the mean of its divisors is an integer number (567301980000).

Almost surely, 2^{51231694804224} is an apocalyptic number.

It is an amenable number.

51231694804224 is an abundant number, since it is smaller than the sum of its proper divisors (112151275435776).

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

51231694804224 is a wasteful number, since it uses less digits than its factorization.

51231694804224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877321 (or 13877307 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 51231694804224 in words is "fifty-one trillion, two hundred thirty-one billion, six hundred ninety-four million, eight hundred four thousand, two hundred twenty-four".