51231030328 has 16 divisors (see below), whose sum is σ = 97374048480. Its totient is φ = 25264617408.

The previous prime is 51231030299. The next prime is 51231030341. The reversal of 51231030328 is 82303013215.

It is a junction number, because it is equal to n+sod(n) for n = 51231030296 and 51231030305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43861600 + ... + 43862767.

It is an arithmetic number, because the mean of its divisors is an integer number (6085878030).

Almost surely, 2^51231030328 is an apocalyptic number.

It is an amenable number.

51231030328 is a deficient number, since it is larger than the sum of its proper divisors (46143018152).

51231030328 is a wasteful number, since it uses less digits than its factorization.

51231030328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87724446 (or 87724442 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 51231030328 in words is "fifty-one billion, two hundred thirty-one million, thirty thousand, three hundred twenty-eight".