129564945913 has 16 divisors (see below), whose sum is σ = 142203491136. Its totient is φ = 117309366720.

The previous prime is 129564945883. The next prime is 129564945931. The reversal of 129564945913 is 319549465921.

It is a happy number.

It is not a de Polignac number, because 129564945913 - 2²⁵ = 129531391481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129564945113) 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, 2667858 + ... + 2715988.

It is an arithmetic number, because the mean of its divisors is an integer number (8887718196).

Almost surely, 2^129564945913 is an apocalyptic number.

129564945913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129564945913 is a deficient number, since it is larger than the sum of its proper divisors (12638545223).

129564945913 is a wasteful number, since it uses less digits than its factorization.

129564945913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52104.

The product of its digits is 10497600, while the sum is 58.

The spelling of 129564945913 in words is "one hundred twenty-nine billion, five hundred sixty-four million, nine hundred forty-five thousand, nine hundred thirteen".