51632252784 has 120 divisors (see below), whose sum is σ = 166329770880. Its totient is φ = 14645902464.

The previous prime is 51632252779. The next prime is 51632252807. The reversal of 51632252784 is 48725223615.

51632252784 is a `hidden beast` number, since 5 + 1 + 632 + 2 + 5 + 2 + 7 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44142 + ... + 324365.

It is an arithmetic number, because the mean of its divisors is an integer number (1386081424).

Almost surely, 2^51632252784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51632252784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83164885440).

51632252784 is an abundant number, since it is smaller than the sum of its proper divisors (114697518096).

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

51632252784 is a wasteful number, since it uses less digits than its factorization.

51632252784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368667 (or 368658 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 51632252784 in words is "fifty-one billion, six hundred thirty-two million, two hundred fifty-two thousand, seven hundred eighty-four".