51132113228 has 12 divisors (see below), whose sum is σ = 102264226512. Its totient is φ = 21913762800.

The previous prime is 51132113189. The next prime is 51132113237. The reversal of 51132113228 is 82231123115.

51132113228 is an admirable number.

It is a super-2 number, since 2×51132113228² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51132113228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913073423 + ... + 913073478.

It is an arithmetic number, because the mean of its divisors is an integer number (8522018876).

Almost surely, 2^51132113228 is an apocalyptic number.

It is an amenable number.

51132113228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51132113228 is a wasteful number, since it uses less digits than its factorization.

51132113228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826146912 (or 1826146910 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The spelling of 51132113228 in words is "fifty-one billion, one hundred thirty-two million, one hundred thirteen thousand, two hundred twenty-eight".