51318654848976 has 80 divisors (see below), whose sum is σ = 132860946355200. Its totient is φ = 17069110041984.

The previous prime is 51318654848939. The next prime is 51318654848999. The reversal of 51318654848976 is 67984845681315.

It is a happy number.

51318654848976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51318654848898 and 51318654848907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76833865 + ... + 77498903.

It is an arithmetic number, because the mean of its divisors is an integer number (1660761829440).

Almost surely, 2^{51318654848976} is an apocalyptic number.

It is an amenable number.

51318654848976 is an abundant number, since it is smaller than the sum of its proper divisors (81542291506224).

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

51318654848976 is a wasteful number, since it uses less digits than its factorization.

51318654848976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668536 (or 668530 counting only the distinct ones).

The product of its digits is 1393459200, while the sum is 75.

The spelling of 51318654848976 in words is "fifty-one trillion, three hundred eighteen billion, six hundred fifty-four million, eight hundred forty-eight thousand, nine hundred seventy-six".