51116932047888 has 120 divisors (see below), whose sum is σ = 163498013526848. Its totient is φ = 14604393851136.

The previous prime is 51116932047847. The next prime is 51116932047893. The reversal of 51116932047888 is 88874023961115.

51116932047888 is a `hidden beast` number, since 5 + 1 + 1 + 1 + 69 + 3 + 20 + 478 + 88 = 666.

It is a super-2 number, since 2×51116932047888² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33152295 + ... + 34659897.

It is a 2-persistent number, because it is pandigital, and so is 2⋅51116932047888 = 102233864095776, but 3⋅51116932047888 = 153350796143664 is not.

Almost surely, 2^{51116932047888} is an apocalyptic number.

It is an amenable number.

51116932047888 is an abundant number, since it is smaller than the sum of its proper divisors (112381081478960).

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

51116932047888 is a wasteful number, since it uses less digits than its factorization.

51116932047888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541261 (or 1541252 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 51116932047888 in words is "fifty-one trillion, one hundred sixteen billion, nine hundred thirty-two million, forty-seven thousand, eight hundred eighty-eight".