808990947852 has 12 divisors (see below), whose sum is σ = 1887645545016. Its totient is φ = 269663649280.

The previous prime is 808990947829. The next prime is 808990947871. The reversal of 808990947852 is 258749099808.

It is a tau number, because it is divible by the number of its divisors (12).

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, 33707956149 + ... + 33707956172.

It is an arithmetic number, because the mean of its divisors is an integer number (157303795418).

Almost surely, 2^808990947852 is an apocalyptic number.

It is an amenable number.

808990947852 is an abundant number, since it is smaller than the sum of its proper divisors (1078654597164).

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

808990947852 is a wasteful number, since it uses less digits than its factorization.

808990947852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67415912328 (or 67415912326 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 69.

The spelling of 808990947852 in words is "eight hundred eight billion, nine hundred ninety million, nine hundred forty-seven thousand, eight hundred fifty-two".