51321444812448 has 96 divisors (see below), whose sum is σ = 134940289139712. Its totient is φ = 17079036000000.

The previous prime is 51321444812419. The next prime is 51321444812489. The reversal of 51321444812448 is 84421844412315.

51321444812448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 51321444812448.

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, 234274615 + ... + 234493577.

It is an arithmetic number, because the mean of its divisors is an integer number (1405628011872).

Almost surely, 2^{51321444812448} is an apocalyptic number.

It is an amenable number.

51321444812448 is an abundant number, since it is smaller than the sum of its proper divisors (83618844327264).

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

51321444812448 is a wasteful number, since it uses less digits than its factorization.

51321444812448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222978 (or 222970 counting only the distinct ones).

The product of its digits is 3932160, while the sum is 51.

The spelling of 51321444812448 in words is "fifty-one trillion, three hundred twenty-one billion, four hundred forty-four million, eight hundred twelve thousand, four hundred forty-eight".