51237230620 has 24 divisors (see below), whose sum is σ = 107917480944. Its totient is φ = 20434073856.

The previous prime is 51237230609. The next prime is 51237230651. The reversal of 51237230620 is 2603273215.

It is a congruent number.

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, 3794242 + ... + 3807721.

It is an arithmetic number, because the mean of its divisors is an integer number (4496561706).

Almost surely, 2^51237230620 is an apocalyptic number.

It is an amenable number.

51237230620 is an abundant number, since it is smaller than the sum of its proper divisors (56680250324).

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

51237230620 is a wasteful number, since it uses less digits than its factorization.

51237230620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7602309 (or 7602307 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 51237230620 in words is "fifty-one billion, two hundred thirty-seven million, two hundred thirty thousand, six hundred twenty".