51297409364976 has 180 divisors, whose sum is σ = 155747798130912. Its totient is φ = 15750893555712.

The previous prime is 51297409364933. The next prime is 51297409364977. The reversal of 51297409364976 is 67946390479215.

51297409364976 is a `hidden beast` number, since 5 + 1 + 2 + 9 + 7 + 40 + 93 + 6 + 497 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51297409364977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11157205 + ... + 15069108.

Almost surely, 2^{51297409364976} is an apocalyptic number.

It is an amenable number.

51297409364976 is an abundant number, since it is smaller than the sum of its proper divisors (104450388765936).

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

51297409364976 is a wasteful number, since it uses less digits than its factorization.

51297409364976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26226408 (or 26226382 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 72.

The spelling of 51297409364976 in words is "fifty-one trillion, two hundred ninety-seven billion, four hundred nine million, three hundred sixty-four thousand, nine hundred seventy-six".