129624311953 has 4 divisors (see below), whose sum is σ = 129715150320. Its totient is φ = 129533473588.

The previous prime is 129624311923. The next prime is 129624311963. The reversal of 129624311953 is 359113426921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359113426921 = 1051 ⋅341687371.

It is a cyclic number.

It is not a de Polignac number, because 129624311953 - 2¹³ = 129624303761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129624311923) 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, 45417043 + ... + 45419896.

It is an arithmetic number, because the mean of its divisors is an integer number (32428787580).

Almost surely, 2^129624311953 is an apocalyptic number.

It is an amenable number.

129624311953 is a deficient number, since it is larger than the sum of its proper divisors (90838367).

129624311953 is an equidigital number, since it uses as much as digits as its factorization.

129624311953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90838366.

The product of its digits is 349920, while the sum is 46.

The spelling of 129624311953 in words is "one hundred twenty-nine billion, six hundred twenty-four million, three hundred eleven thousand, nine hundred fifty-three".