51230322464 has 48 divisors (see below), whose sum is σ = 103247575200. Its totient is φ = 25009205760.

The previous prime is 51230322371. The next prime is 51230322487. The reversal of 51230322464 is 46422303215.

51230322464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 51230322464.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189319 + ... + 4201529.

It is an arithmetic number, because the mean of its divisors is an integer number (2150991150).

Almost surely, 2^51230322464 is an apocalyptic number.

It is an amenable number.

51230322464 is an abundant number, since it is smaller than the sum of its proper divisors (52017252736).

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

51230322464 is a wasteful number, since it uses less digits than its factorization.

51230322464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15313 (or 15305 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 51230322464 its reverse (46422303215), we get a palindrome (97652625679).

The spelling of 51230322464 in words is "fifty-one billion, two hundred thirty million, three hundred twenty-two thousand, four hundred sixty-four".