129424718299 has 4 divisors (see below), whose sum is σ = 129458001880. Its totient is φ = 129391434720.

The previous prime is 129424718281. The next prime is 129424718323. The reversal of 129424718299 is 992817424921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129424718299 - 2²¹ = 129422621147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129424718239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16635957 + ... + 16643734.

It is an arithmetic number, because the mean of its divisors is an integer number (32364500470).

Almost surely, 2^129424718299 is an apocalyptic number.

129424718299 is a deficient number, since it is larger than the sum of its proper divisors (33283581).

129424718299 is an equidigital number, since it uses as much as digits as its factorization.

129424718299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33283580.

The product of its digits is 5225472, while the sum is 58.

The spelling of 129424718299 in words is "one hundred twenty-nine billion, four hundred twenty-four million, seven hundred eighteen thousand, two hundred ninety-nine".