51983898930 has 48 divisors (see below), whose sum is σ = 140164000704. Its totient is φ = 13862372400.

The previous prime is 51983898899. The next prime is 51983898949. The reversal of 51983898930 is 3989838915.

51983898930 is a `hidden beast` number, since 519 + 8 + 3 + 8 + 9 + 89 + 30 = 666.

51983898930 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 23 ways as a sum of consecutive naturals, for example, 10693846 + ... + 10698705.

It is an arithmetic number, because the mean of its divisors is an integer number (2920083348).

Almost surely, 2^51983898930 is an apocalyptic number.

51983898930 is an abundant number, since it is smaller than the sum of its proper divisors (88180101774).

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

51983898930 is a wasteful number, since it uses less digits than its factorization.

51983898930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21392573 (or 21392561 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 51983898930 in words is "fifty-one billion, nine hundred eighty-three million, eight hundred ninety-eight thousand, nine hundred thirty".