129791527456 has 24 divisors (see below), whose sum is σ = 268975864080. Its totient is φ = 61480196928.

The previous prime is 129791527429. The next prime is 129791527457. The reversal of 129791527456 is 654725197921.

It is a self number, because there is not a number n which added to its sum of digits gives 129791527456.

It is not an unprimeable number, because it can be changed into a prime (129791527457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106735846 + ... + 106737061.

It is an arithmetic number, because the mean of its divisors is an integer number (11207327670).

Almost surely, 2^129791527456 is an apocalyptic number.

129791527456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129791527456 is an abundant number, since it is smaller than the sum of its proper divisors (139184336624).

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

129791527456 is a wasteful number, since it uses less digits than its factorization.

129791527456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213472936 (or 213472928 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 58.

The spelling of 129791527456 in words is "one hundred twenty-nine billion, seven hundred ninety-one million, five hundred twenty-seven thousand, four hundred fifty-six".