808863904449 has 56 divisors (see below), whose sum is σ = 1222865957952. Its totient is φ = 534752992800.

The previous prime is 808863904447. The next prime is 808863904469. The reversal of 808863904449 is 944409368808.

808863904449 is a `hidden beast` number, since 80 + 8 + 86 + 39 + 0 + 4 + 449 = 666.

It is not a de Polignac number, because 808863904449 - 2¹ = 808863904447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (808863904447) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 67472434 + ... + 67484420.

Almost surely, 2^808863904449 is an apocalyptic number.

It is an amenable number.

808863904449 is a deficient number, since it is larger than the sum of its proper divisors (414002053503).

808863904449 is a wasteful number, since it uses less digits than its factorization.

808863904449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12769 (or 12754 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 808863904449 in words is "eight hundred eight billion, eight hundred sixty-three million, nine hundred four thousand, four hundred forty-nine".