12776644068 has 24 divisors (see below), whose sum is σ = 30374664768. Its totient is φ = 4178524896.

The previous prime is 12776644019. The next prime is 12776644073. The reversal of 12776644068 is 86044667721.

It is a self number, because there is not a number n which added to its sum of digits gives 12776644068.

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, 10043896 + ... + 10045167.

It is an arithmetic number, because the mean of its divisors is an integer number (1265611032).

Almost surely, 2^12776644068 is an apocalyptic number.

It is an amenable number.

12776644068 is an abundant number, since it is smaller than the sum of its proper divisors (17598020700).

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

12776644068 is a wasteful number, since it uses less digits than its factorization.

12776644068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20089123 (or 20089121 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 12776644068 in words is "twelve billion, seven hundred seventy-six million, six hundred forty-four thousand, sixty-eight".