51111100604982 has 64 divisors (see below), whose sum is σ = 122488013168640. Its totient is φ = 14035084826400.

The previous prime is 51111100604933. The next prime is 51111100604983. The reversal of 51111100604982 is 28940600111115.

It is a super-2 number, since 2×51111100604982² (a number of 28 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 51111100604982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111100604983) 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, 886024494 + ... + 886082177.

It is an arithmetic number, because the mean of its divisors is an integer number (1913875205760).

Almost surely, 2^{51111100604982} is an apocalyptic number.

51111100604982 is an abundant number, since it is smaller than the sum of its proper divisors (71376912563658).

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

51111100604982 is a wasteful number, since it uses less digits than its factorization.

51111100604982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772106729.

The product of its (nonzero) digits is 17280, while the sum is 39.

The spelling of 51111100604982 in words is "fifty-one trillion, one hundred eleven billion, one hundred million, six hundred four thousand, nine hundred eighty-two".