556774431388 has 24 divisors (see below), whose sum is σ = 1114482331872. Its totient is φ = 238417584384.

The previous prime is 556774431293. The next prime is 556774431443. The reversal of 556774431388 is 883134477655.

It is a congruent number.

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, 8300545 + ... + 8367352.

It is an arithmetic number, because the mean of its divisors is an integer number (46436763828).

Almost surely, 2^556774431388 is an apocalyptic number.

It is an amenable number.

556774431388 is an abundant number, since it is smaller than the sum of its proper divisors (557707900484).

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

556774431388 is a wasteful number, since it uses less digits than its factorization.

556774431388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16669101 (or 16669099 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 61.

The spelling of 556774431388 in words is "five hundred fifty-six billion, seven hundred seventy-four million, four hundred thirty-one thousand, three hundred eighty-eight".