51684864762 has 64 divisors (see below), whose sum is σ = 108481314816. Its totient is φ = 16396706880.

The previous prime is 51684864691. The next prime is 51684864767. The reversal of 51684864762 is 26746848615.

It is not an unprimeable number, because it can be changed into a prime (51684864767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3435168 + ... + 3450180.

It is an arithmetic number, because the mean of its divisors is an integer number (1695020544).

Almost surely, 2^51684864762 is an apocalyptic number.

51684864762 is an abundant number, since it is smaller than the sum of its proper divisors (56796450054).

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

51684864762 is a wasteful number, since it uses less digits than its factorization.

51684864762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15355.

The product of its digits is 15482880, while the sum is 57.

The spelling of 51684864762 in words is "fifty-one billion, six hundred eighty-four million, eight hundred sixty-four thousand, seven hundred sixty-two".