12876772929 has 32 divisors (see below), whose sum is σ = 18405273600. Its totient is φ = 7984005120.

The previous prime is 12876772921. The next prime is 12876772943. The reversal of 12876772929 is 92927767821.

It is not a de Polignac number, because 12876772929 - 2³ = 12876772921 is a prime.

It is a super-2 number, since 2×12876772929² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12876772921) 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, 960577 + ... + 973889.

It is an arithmetic number, because the mean of its divisors is an integer number (575164800).

Almost surely, 2^12876772929 is an apocalyptic number.

12876772929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12876772929 is a deficient number, since it is larger than the sum of its proper divisors (5528500671).

12876772929 is a wasteful number, since it uses less digits than its factorization.

12876772929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13645.

The product of its digits is 10668672, while the sum is 60.

The spelling of 12876772929 in words is "twelve billion, eight hundred seventy-six million, seven hundred seventy-two thousand, nine hundred twenty-nine".