51374785404 has 12 divisors (see below), whose sum is σ = 119874499304. Its totient is φ = 17124928464.

The previous prime is 51374785391. The next prime is 51374785457. The reversal of 51374785404 is 40458747315.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140616047 + ... + 2140616070.

Almost surely, 2^51374785404 is an apocalyptic number.

It is an amenable number.

51374785404 is an abundant number, since it is smaller than the sum of its proper divisors (68499713900).

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

51374785404 is a wasteful number, since it uses less digits than its factorization.

51374785404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281232124 (or 4281232122 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 51374785404 in words is "fifty-one billion, three hundred seventy-four million, seven hundred eighty-five thousand, four hundred four".