129414364720 has 40 divisors (see below), whose sum is σ = 308227147200. Its totient is φ = 50503165440.

The previous prime is 129414364697. The next prime is 129414364733. The reversal of 129414364720 is 27463414921.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19724520 + ... + 19731079.

It is an arithmetic number, because the mean of its divisors is an integer number (7705678680).

Almost surely, 2^129414364720 is an apocalyptic number.

129414364720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129414364720 is an abundant number, since it is smaller than the sum of its proper divisors (178812782480).

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

129414364720 is a wasteful number, since it uses less digits than its factorization.

129414364720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39455653 (or 39455647 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 129414364720 in words is "one hundred twenty-nine billion, four hundred fourteen million, three hundred sixty-four thousand, seven hundred twenty".