51830889620 has 48 divisors (see below), whose sum is σ = 120258286848. Its totient is φ = 18664419840.

The previous prime is 51830889619. The next prime is 51830889647. The reversal of 51830889620 is 2698803815.

It is a super-2 number, since 2×51830889620² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3306176 + ... + 3321815.

It is an arithmetic number, because the mean of its divisors is an integer number (2505380976).

Almost surely, 2^51830889620 is an apocalyptic number.

It is an amenable number.

51830889620 is an abundant number, since it is smaller than the sum of its proper divisors (68427397228).

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

51830889620 is a wasteful number, since it uses less digits than its factorization.

51830889620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628040 (or 6628038 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 51830889620 in words is "fifty-one billion, eight hundred thirty million, eight hundred eighty-nine thousand, six hundred twenty".