408881081964 has 24 divisors (see below), whose sum is σ = 954066201088. Its totient is φ = 136292216400.

The previous prime is 408881081941. The next prime is 408881082007. The reversal of 408881081964 is 469180188804.

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, 2044689 + ... + 2235735.

Almost surely, 2^408881081964 is an apocalyptic number.

It is an amenable number.

408881081964 is an abundant number, since it is smaller than the sum of its proper divisors (545185119124).

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

408881081964 is a wasteful number, since it uses less digits than its factorization.

408881081964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369405 (or 369403 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 57.

The spelling of 408881081964 in words is "four hundred eight billion, eight hundred eighty-one million, eighty-one thousand, nine hundred sixty-four".