51976273968 has 80 divisors (see below), whose sum is σ = 149677503360. Its totient is φ = 17268945984.

The previous prime is 51976273963. The next prime is 51976273991. The reversal of 51976273968 is 86937267915.

51976273968 is a `hidden beast` number, since 519 + 7 + 6 + 27 + 3 + 96 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (51976273963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63330 + ... + 328577.

It is an arithmetic number, because the mean of its divisors is an integer number (1870968792).

Almost surely, 2^51976273968 is an apocalyptic number.

It is an amenable number.

51976273968 is an abundant number, since it is smaller than the sum of its proper divisors (97701229392).

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

51976273968 is a wasteful number, since it uses less digits than its factorization.

51976273968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392231 (or 392219 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 51976273968 in words is "fifty-one billion, nine hundred seventy-six million, two hundred seventy-three thousand, nine hundred sixty-eight".