51357469964 has 6 divisors (see below), whose sum is σ = 89875572444. Its totient is φ = 25678734980.

The previous prime is 51357469903. The next prime is 51357469991. The reversal of 51357469964 is 46996475315.

51357469964 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 2×51357469964² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419683742 + ... + 6419683749.

It is an arithmetic number, because the mean of its divisors is an integer number (14979262074).

Almost surely, 2^51357469964 is an apocalyptic number.

It is an amenable number.

51357469964 is a deficient number, since it is larger than the sum of its proper divisors (38518102480).

51357469964 is a wasteful number, since it uses less digits than its factorization.

51357469964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12839367495 (or 12839367493 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 59.

The spelling of 51357469964 in words is "fifty-one billion, three hundred fifty-seven million, four hundred sixty-nine thousand, nine hundred sixty-four".