51363498831 has 32 divisors (see below), whose sum is σ = 70667619840. Its totient is φ = 33169046400.

The previous prime is 51363498803. The next prime is 51363498917. The reversal of 51363498831 is 13889436315.

It is not a de Polignac number, because 51363498831 - 2³⁵ = 17003760463 is a prime.

It is a super-2 number, since 2×51363498831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51363496831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15758880 + ... + 15762138.

It is an arithmetic number, because the mean of its divisors is an integer number (2208363120).

Almost surely, 2^51363498831 is an apocalyptic number.

51363498831 is a deficient number, since it is larger than the sum of its proper divisors (19304121009).

51363498831 is a wasteful number, since it uses less digits than its factorization.

51363498831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4607.

The product of its digits is 1866240, while the sum is 51.

The spelling of 51363498831 in words is "fifty-one billion, three hundred sixty-three million, four hundred ninety-eight thousand, eight hundred thirty-one".