51773296464 has 30 divisors (see below), whose sum is σ = 144893323146. Its totient is φ = 17257765440.

The previous prime is 51773296433. The next prime is 51773296511. The reversal of 51773296464 is 46469237715.

51773296464 is a `hidden beast` number, since 5 + 177 + 3 + 2 + 9 + 6 + 464 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51710760000 + 62536464 = 227400^2 + 7908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51773296464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179768247 + ... + 179768534.

Almost surely, 2^51773296464 is an apocalyptic number.

It is an amenable number.

51773296464 is an abundant number, since it is smaller than the sum of its proper divisors (93120026682).

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

51773296464 is a wasteful number, since it uses less digits than its factorization.

51773296464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359536795 (or 359536786 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 51773296464 in words is "fifty-one billion, seven hundred seventy-three million, two hundred ninety-six thousand, four hundred sixty-four".