6455584877868 has 72 divisors (see below), whose sum is σ = 18667556893440. Its totient is φ = 1842663754080.

The previous prime is 6455584877843. The next prime is 6455584877881. The reversal of 6455584877868 is 8687784855546.

6455584877868 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 5 + 8 + 487 + 78 + 68 = 666.

It is a super-2 number, since 2×6455584877868² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12163758 + ... + 12683381.

It is an arithmetic number, because the mean of its divisors is an integer number (259271623520).

Almost surely, 2^{6455584877868} is an apocalyptic number.

It is an amenable number.

6455584877868 is an abundant number, since it is smaller than the sum of its proper divisors (12211972015572).

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

6455584877868 is a wasteful number, since it uses less digits than its factorization.

6455584877868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24848187 (or 24848182 counting only the distinct ones).

The product of its digits is 14450688000, while the sum is 81.

The spelling of 6455584877868 in words is "six trillion, four hundred fifty-five billion, five hundred eighty-four million, eight hundred seventy-seven thousand, eight hundred sixty-eight".