51981296176 has 20 divisors (see below), whose sum is σ = 100717314592. Its totient is φ = 25989731136.

The previous prime is 51981296173. The next prime is 51981296177. The reversal of 51981296176 is 67169218915.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51981296173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789850 + ... + 853126.

Almost surely, 2^51981296176 is an apocalyptic number.

It is an amenable number.

51981296176 is a deficient number, since it is larger than the sum of its proper divisors (48736018416).

51981296176 is a wasteful number, since it uses less digits than its factorization.

51981296176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114628 (or 114622 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 55.

The spelling of 51981296176 in words is "fifty-one billion, nine hundred eighty-one million, two hundred ninety-six thousand, one hundred seventy-six".