6404292912688 has 20 divisors (see below), whose sum is σ = 13536346384008. Its totient is φ = 2911042232960.

The previous prime is 6404292912679. The next prime is 6404292912691. The reversal of 6404292912688 is 8862192924046.

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, 18194013781 + ... + 18194014132.

Almost surely, 2^{6404292912688} is an apocalyptic number.

It is an amenable number.

6404292912688 is an abundant number, since it is smaller than the sum of its proper divisors (7132053471320).

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

6404292912688 is a wasteful number, since it uses less digits than its factorization.

6404292912688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36388027932 (or 36388027926 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 6404292912688 in words is "six trillion, four hundred four billion, two hundred ninety-two million, nine hundred twelve thousand, six hundred eighty-eight".