51630365064544 has 96 divisors (see below), whose sum is σ = 122396843923200. Its totient is φ = 20943093127680.

The previous prime is 51630365064517. The next prime is 51630365064559. The reversal of 51630365064544 is 44546056303615.

51630365064544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51630365064544² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51630365064491 and 51630365064500.

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, 1124422 + ... + 10223749.

It is an arithmetic number, because the mean of its divisors is an integer number (1274967124200).

Almost surely, 2^{51630365064544} is an apocalyptic number.

It is an amenable number.

51630365064544 is an abundant number, since it is smaller than the sum of its proper divisors (70766478858656).

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

51630365064544 is a wasteful number, since it uses less digits than its factorization.

51630365064544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349276 (or 11349268 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 52.

The spelling of 51630365064544 in words is "fifty-one trillion, six hundred thirty billion, three hundred sixty-five million, sixty-four thousand, five hundred forty-four".