129424204799 has 8 divisors (see below), whose sum is σ = 130421436288. Its totient is φ = 128427113880.

The previous prime is 129424204787. The next prime is 129424204817. The reversal of 129424204799 is 997402424921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129424204799 - 2²⁰ = 129423156223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129424204799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129424204709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2530094 + ... + 2580740.

It is an arithmetic number, because the mean of its divisors is an integer number (16302679536).

Almost surely, 2^129424204799 is an apocalyptic number.

129424204799 is a deficient number, since it is larger than the sum of its proper divisors (997231489).

129424204799 is a wasteful number, since it uses less digits than its factorization.

129424204799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70285.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 129424204799 in words is "one hundred twenty-nine billion, four hundred twenty-four million, two hundred four thousand, seven hundred ninety-nine".