12776758460 has 12 divisors (see below), whose sum is σ = 26831192808. Its totient is φ = 5110703376.

The previous prime is 12776758349. The next prime is 12776758499. The reversal of 12776758460 is 6485767721.

It is a happy number.

It is a congruent number.

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, 319418942 + ... + 319418981.

It is an arithmetic number, because the mean of its divisors is an integer number (2235932734).

Almost surely, 2^12776758460 is an apocalyptic number.

12776758460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12776758460 is an abundant number, since it is smaller than the sum of its proper divisors (14054434348).

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

12776758460 is a wasteful number, since it uses less digits than its factorization.

12776758460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638837932 (or 638837930 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 12776758460 in words is "twelve billion, seven hundred seventy-six million, seven hundred fifty-eight thousand, four hundred sixty".