12805812908 has 24 divisors (see below), whose sum is σ = 25781247744. Its totient is φ = 5451858000.

The previous prime is 12805812881. The next prime is 12805812911. The reversal of 12805812908 is 80921850821.

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, 1510178 + ... + 1518633.

It is an arithmetic number, because the mean of its divisors is an integer number (1074218656).

Almost surely, 2^12805812908 is an apocalyptic number.

It is an amenable number.

12805812908 is an abundant number, since it is smaller than the sum of its proper divisors (12975434836).

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

12805812908 is a wasteful number, since it uses less digits than its factorization.

12805812908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028973 (or 3028971 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 44.

The spelling of 12805812908 in words is "twelve billion, eight hundred five million, eight hundred twelve thousand, nine hundred eight".