809994470508 has 96 divisors (see below), whose sum is σ = 2111532433920. Its totient is φ = 268517545920.

The previous prime is 809994470491. The next prime is 809994470557. The reversal of 809994470508 is 805074499908.

809994470508 is a `hidden beast` number, since 80 + 9 + 9 + 9 + 4 + 47 + 0 + 508 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14852266 + ... + 14906702.

It is an arithmetic number, because the mean of its divisors is an integer number (21995129520).

Almost surely, 2^809994470508 is an apocalyptic number.

It is an amenable number.

809994470508 is an abundant number, since it is smaller than the sum of its proper divisors (1301537963412).

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

809994470508 is a wasteful number, since it uses less digits than its factorization.

809994470508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55204 (or 55196 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 809994470508 in words is "eight hundred nine billion, nine hundred ninety-four million, four hundred seventy thousand, five hundred eight".