51039216204 has 24 divisors (see below), whose sum is σ = 119554902768. Its totient is φ = 16946872320.

The previous prime is 51039216197. The next prime is 51039216209. The reversal of 51039216204 is 40261293015.

It is not an unprimeable number, because it can be changed into a prime (51039216209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8271757 + ... + 8277924.

It is an arithmetic number, because the mean of its divisors is an integer number (4981454282).

Almost surely, 2^51039216204 is an apocalyptic number.

It is an amenable number.

51039216204 is an abundant number, since it is smaller than the sum of its proper divisors (68515686564).

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

51039216204 is a wasteful number, since it uses less digits than its factorization.

51039216204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16549945 (or 16549943 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 51039216204 in words is "fifty-one billion, thirty-nine million, two hundred sixteen thousand, two hundred four".