408873218672 has 80 divisors (see below), whose sum is σ = 890378607360. Its totient is φ = 180947644416.

The previous prime is 408873218659. The next prime is 408873218683. The reversal of 408873218672 is 276812378804.

It is a super-2 number, since 2×408873218672² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379313 + ... + 980624.

It is an arithmetic number, because the mean of its divisors is an integer number (11129732592).

Almost surely, 2^408873218672 is an apocalyptic number.

It is an amenable number.

408873218672 is an abundant number, since it is smaller than the sum of its proper divisors (481505388688).

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

408873218672 is a wasteful number, since it uses less digits than its factorization.

408873218672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360030 (or 1360024 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 408873218672 in words is "four hundred eight billion, eight hundred seventy-three million, two hundred eighteen thousand, six hundred seventy-two".