12641877808 has 40 divisors (see below), whose sum is σ = 28021222400. Its totient is φ = 5412432960.

The previous prime is 12641877799. The next prime is 12641877821. The reversal of 12641877808 is 80877814621.

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, 54043 + ... + 167941.

It is an arithmetic number, because the mean of its divisors is an integer number (700530560).

Almost surely, 2^12641877808 is an apocalyptic number.

It is an amenable number.

12641877808 is an abundant number, since it is smaller than the sum of its proper divisors (15379344592).

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

12641877808 is a wasteful number, since it uses less digits than its factorization.

12641877808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114905 (or 114899 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 52.

The spelling of 12641877808 in words is "twelve billion, six hundred forty-one million, eight hundred seventy-seven thousand, eight hundred eight".