129760559731 has 16 divisors (see below), whose sum is σ = 145039910400. Its totient is φ = 115078056480.

The previous prime is 129760559699. The next prime is 129760559737. The reversal of 129760559731 is 137955067921.

It is a cyclic number.

It is not a de Polignac number, because 129760559731 - 2⁵ = 129760559699 is a prime.

It is a super-2 number, since 2×129760559731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (129760559737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250056 + ... + 567493.

It is an arithmetic number, because the mean of its divisors is an integer number (9064994400).

Almost surely, 2^129760559731 is an apocalyptic number.

129760559731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

129760559731 is a deficient number, since it is larger than the sum of its proper divisors (15279350669).

129760559731 is a wasteful number, since it uses less digits than its factorization.

129760559731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817914.

The product of its (nonzero) digits is 3572100, while the sum is 55.

The spelling of 129760559731 in words is "one hundred twenty-nine billion, seven hundred sixty million, five hundred fifty-nine thousand, seven hundred thirty-one".