51321213053318 has 16 divisors (see below), whose sum is σ = 82903616169360. Its totient is φ = 23686679956896.

The previous prime is 51321213053317. The next prime is 51321213053377. The reversal of 51321213053318 is 81335031212315.

51321213053318 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51321213053317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34029848 + ... + 35505956.

It is an arithmetic number, because the mean of its divisors is an integer number (5181476010585).

Almost surely, 2^{51321213053318} is an apocalyptic number.

51321213053318 is a deficient number, since it is larger than the sum of its proper divisors (31582403116042).

51321213053318 is a wasteful number, since it uses less digits than its factorization.

51321213053318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813351.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 51321213053318 in words is "fifty-one trillion, three hundred twenty-one billion, two hundred thirteen million, fifty-three thousand, three hundred eighteen".