6408117727864 has 32 divisors (see below), whose sum is σ = 12037990626000. Its totient is φ = 3197992637952.

The previous prime is 6408117727801. The next prime is 6408117727967. The reversal of 6408117727864 is 4687277118046.

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, 8593927 + ... + 9309769.

Almost surely, 2^{6408117727864} is an apocalyptic number.

It is an amenable number.

6408117727864 is a deficient number, since it is larger than the sum of its proper divisors (5629872898136).

6408117727864 is a wasteful number, since it uses less digits than its factorization.

6408117727864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717967 (or 717963 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 6408117727864 in words is "six trillion, four hundred eight billion, one hundred seventeen million, seven hundred twenty-seven thousand, eight hundred sixty-four".