51516626272 has 48 divisors (see below), whose sum is σ = 101786751360. Its totient is φ = 25666198528.

The previous prime is 51516626251. The next prime is 51516626299. The reversal of 51516626272 is 27262661515.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12214308 + ... + 12218524.

It is an arithmetic number, because the mean of its divisors is an integer number (2120557320).

Almost surely, 2^51516626272 is an apocalyptic number.

It is an amenable number.

51516626272 is a deficient number, since it is larger than the sum of its proper divisors (50270125088).

51516626272 is a wasteful number, since it uses less digits than its factorization.

51516626272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503 (or 5495 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The spelling of 51516626272 in words is "fifty-one billion, five hundred sixteen million, six hundred twenty-six thousand, two hundred seventy-two".