129976272360 has 768 divisors, whose sum is σ = 516842726400. Its totient is φ = 27918950400.

The previous prime is 129976272359. The next prime is 129976272397. The reversal of 129976272360 is 63272679921.

129976272360 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 7 + 6 + 272 + 360 = 666.

129976272360 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 129976272297 and 129976272306.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 392677395 + ... + 392677725.

It is an arithmetic number, because the mean of its divisors is an integer number (672972300).

Almost surely, 2^129976272360 is an apocalyptic number.

129976272360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129976272360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258421363200).

129976272360 is an abundant number, since it is smaller than the sum of its proper divisors (386866454040).

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

129976272360 is a wasteful number, since it uses less digits than its factorization.

129976272360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 129976272360 in words is "one hundred twenty-nine billion, nine hundred seventy-six million, two hundred seventy-two thousand, three hundred sixty".