408905479607776 has 24 divisors (see below), whose sum is σ = 811371502851840. Its totient is φ = 202842875708928.

The previous prime is 408905479607759. The next prime is 408905479607819. The reversal of 408905479607776 is 677706974509804.

It is a junction number, because it is equal to n+sod(n) for n = 408905479607696 and 408905479607705.

It is a congruent number.

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, 50308248841 + ... + 50308256968.

It is an arithmetic number, because the mean of its divisors is an integer number (33807145952160).

Almost surely, 2^{408905479607776} is an apocalyptic number.

It is an amenable number.

408905479607776 is a deficient number, since it is larger than the sum of its proper divisors (402466023244064).

408905479607776 is a wasteful number, since it uses less digits than its factorization.

408905479607776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100616505946 (or 100616505938 counting only the distinct ones).

The product of its (nonzero) digits is 4480842240, while the sum is 79.

The spelling of 408905479607776 in words is "four hundred eight trillion, nine hundred five billion, four hundred seventy-nine million, six hundred seven thousand, seven hundred seventy-six".