51404638202 has 48 divisors (see below), whose sum is σ = 81940159392. Its totient is φ = 24163064640.

The previous prime is 51404638177. The next prime is 51404638213. The reversal of 51404638202 is 20283640415.

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, 13925177 + ... + 13928867.

It is an arithmetic number, because the mean of its divisors is an integer number (1707086654).

Almost surely, 2^51404638202 is an apocalyptic number.

51404638202 is a deficient number, since it is larger than the sum of its proper divisors (30535521190).

51404638202 is a wasteful number, since it uses less digits than its factorization.

51404638202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903 (or 3850 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 51404638202 in words is "fifty-one billion, four hundred four million, six hundred thirty-eight thousand, two hundred two".