129627979397712 has 60 divisors (see below), whose sum is σ = 364126921790580. Its totient is φ = 43048696986624.

The previous prime is 129627979397669. The next prime is 129627979397743. The reversal of 129627979397712 is 217793979726921.

129627979397712 is a `hidden beast` number, since 1 + 2 + 96 + 2 + 7 + 9 + 79 + 397 + 71 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4195057697856 + 125432921699856 = 2048184^2 + 11199684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1673184873 + ... + 1673262344.

It is an arithmetic number, because the mean of its divisors is an integer number (6068782029843).

Almost surely, 2^{129627979397712} is an apocalyptic number.

129627979397712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129627979397712 is an abundant number, since it is smaller than the sum of its proper divisors (234498942392868).

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

129627979397712 is a wasteful number, since it uses less digits than its factorization.

129627979397712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346447500 (or 3346447491 counting only the distinct ones).

The product of its digits is 2268426384, while the sum is 81.

The spelling of 129627979397712 in words is "one hundred twenty-nine trillion, six hundred twenty-seven billion, nine hundred seventy-nine million, three hundred ninety-seven thousand, seven hundred twelve".