51831000392 has 32 divisors (see below), whose sum is σ = 104309386200. Its totient is φ = 24056930304.

The previous prime is 51831000367. The next prime is 51831000401. The reversal of 51831000392 is 29300013815.

It can be written as a sum of positive squares in 4 ways, for example, as 51395610436 + 435389956 = 226706^2 + 20866^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2600417 + ... + 2620272.

Almost surely, 2^51831000392 is an apocalyptic number.

It is an amenable number.

51831000392 is an abundant number, since it is smaller than the sum of its proper divisors (52478385808).

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

51831000392 is a wasteful number, since it uses less digits than its factorization.

51831000392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220785 (or 5220781 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 51831000392 in words is "fifty-one billion, eight hundred thirty-one million, three hundred ninety-two", and thus it is an aban number.