12776388751380 has 96 divisors (see below), whose sum is σ = 36538043189760. Its totient is φ = 3334272302080.

The previous prime is 12776388751363. The next prime is 12776388751387. The reversal of 12776388751380 is 8315788367721.

12776388751380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12776388751380² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776388751387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35264350 + ... + 35624810.

It is an arithmetic number, because the mean of its divisors is an integer number (380604616560).

Almost surely, 2^{12776388751380} is an apocalyptic number.

12776388751380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12776388751380 is an abundant number, since it is smaller than the sum of its proper divisors (23761654438380).

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

12776388751380 is a wasteful number, since it uses less digits than its factorization.

12776388751380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373089 (or 373087 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 66.

The spelling of 12776388751380 in words is "twelve trillion, seven hundred seventy-six billion, three hundred eighty-eight million, seven hundred fifty-one thousand, three hundred eighty".