51118864360488 has 96 divisors (see below), whose sum is σ = 142094856234240. Its totient is φ = 16592234538240.

The previous prime is 51118864360477. The next prime is 51118864360489. The reversal of 51118864360488 is 88406346881115.

It is a happy number.

51118864360488 is a `hidden beast` number, since 5 + 1 + 1 + 18 + 8 + 6 + 4 + 3 + 604 + 8 + 8 = 666.

It is a super-2 number, since 2×51118864360488² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51118864360489) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 15011256 + ... + 18099047.

It is an arithmetic number, because the mean of its divisors is an integer number (1480154752440).

Almost surely, 2^{51118864360488} is an apocalyptic number.

It is an amenable number.

51118864360488 is an abundant number, since it is smaller than the sum of its proper divisors (90975991873752).

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

51118864360488 is a wasteful number, since it uses less digits than its factorization.

51118864360488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33110879 (or 33110872 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 63.

The spelling of 51118864360488 in words is "fifty-one trillion, one hundred eighteen billion, eight hundred sixty-four million, three hundred sixty thousand, four hundred eighty-eight".