388420680464 has 20 divisors (see below), whose sum is σ = 760323474204. Its totient is φ = 192208171008.

The previous prime is 388420680421. The next prime is 388420680481. The reversal of 388420680464 is 464086024883.

It can be written as a sum of positive squares in 2 ways, for example, as 130905028864 + 257515651600 = 361808^2 + 507460^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 125133977 + ... + 125137080.

Almost surely, 2^388420680464 is an apocalyptic number.

It is an amenable number.

388420680464 is a deficient number, since it is larger than the sum of its proper divisors (371902793740).

388420680464 is a wasteful number, since it uses less digits than its factorization.

388420680464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250271162 (or 250271156 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 53.

The spelling of 388420680464 in words is "three hundred eighty-eight billion, four hundred twenty million, six hundred eighty thousand, four hundred sixty-four".