51338678188 has 24 divisors (see below), whose sum is σ = 102724991264. Its totient is φ = 21992083200.

The previous prime is 51338678179. The next prime is 51338678213. The reversal of 51338678188 is 88187683315.

It is a happy number.

51338678188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363723 + ... + 484738.

Almost surely, 2^51338678188 is an apocalyptic number.

It is an amenable number.

51338678188 is an abundant number, since it is smaller than the sum of its proper divisors (51386313076).

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

51338678188 is a wasteful number, since it uses less digits than its factorization.

51338678188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850633 (or 850631 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The spelling of 51338678188 in words is "fifty-one billion, three hundred thirty-eight million, six hundred seventy-eight thousand, one hundred eighty-eight".