129313764720 has 120 divisors (see below), whose sum is σ = 496318563936. Its totient is φ = 29557430784.

The previous prime is 129313764677. The next prime is 129313764721. The reversal of 129313764720 is 27467313921.

129313764720 is a `hidden beast` number, since 12 + 93 + 13 + 76 + 472 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129313764721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12823707 + ... + 12833786.

Almost surely, 2^129313764720 is an apocalyptic number.

129313764720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129313764720 is an abundant number, since it is smaller than the sum of its proper divisors (367004799216).

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

129313764720 is a wasteful number, since it uses less digits than its factorization.

129313764720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25657519 (or 25657510 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 129313764720 in words is "one hundred twenty-nine billion, three hundred thirteen million, seven hundred sixty-four thousand, seven hundred twenty".