12895969808 has 20 divisors (see below), whose sum is σ = 24987767868. Its totient is φ = 6447513600.

The previous prime is 12895969799. The next prime is 12895969813. The reversal of 12895969808 is 80896959821.

It can be written as a sum of positive squares in 2 ways, for example, as 12359213584 + 536756224 = 111172^2 + 23168^2 .

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, 326960 + ... + 364272.

Almost surely, 2^12895969808 is an apocalyptic number.

It is an amenable number.

12895969808 is a deficient number, since it is larger than the sum of its proper divisors (12091798060).

12895969808 is a wasteful number, since it uses less digits than its factorization.

12895969808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58922 (or 58916 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 65.

The spelling of 12895969808 in words is "twelve billion, eight hundred ninety-five million, nine hundred sixty-nine thousand, eight hundred eight".