12641690368 has 36 divisors (see below), whose sum is σ = 25242623280. Its totient is φ = 6318685184.

The previous prime is 12641690339. The next prime is 12641690377. The reversal of 12641690368 is 86309614621.

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, 957798 + ... + 970906.

It is an arithmetic number, because the mean of its divisors is an integer number (701183980).

Almost surely, 2^12641690368 is an apocalyptic number.

It is an amenable number.

12641690368 is a deficient number, since it is larger than the sum of its proper divisors (12600932912).

12641690368 is an equidigital number, since it uses as much as digits as its factorization.

12641690368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892 (or 16878 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 12641690368 in words is "twelve billion, six hundred forty-one million, six hundred ninety thousand, three hundred sixty-eight".