12756637768 has 16 divisors (see below), whose sum is σ = 27335652480. Its totient is φ = 5467130448.

The previous prime is 12756637727. The next prime is 12756637771. The reversal of 12756637768 is 86773665721.

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, 113898496 + ... + 113898607.

It is an arithmetic number, because the mean of its divisors is an integer number (1708478280).

Almost surely, 2^12756637768 is an apocalyptic number.

It is an amenable number.

12756637768 is an abundant number, since it is smaller than the sum of its proper divisors (14579014712).

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

12756637768 is a wasteful number, since it uses less digits than its factorization.

12756637768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227797116 (or 227797112 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 58.

The spelling of 12756637768 in words is "twelve billion, seven hundred fifty-six million, six hundred thirty-seven thousand, seven hundred sixty-eight".