129418942353 has 4 divisors (see below), whose sum is σ = 172558589808. Its totient is φ = 86279294900.

The previous prime is 129418942349. The next prime is 129418942363. The reversal of 129418942353 is 353249814921.

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.

It is a cyclic number.

It is not a de Polignac number, because 129418942353 - 2² = 129418942349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129418942296 and 129418942305.

It is not an unprimeable number, because it can be changed into a prime (129418942363) 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, 21569823723 + ... + 21569823728.

It is an arithmetic number, because the mean of its divisors is an integer number (43139647452).

Almost surely, 2^129418942353 is an apocalyptic number.

It is an amenable number.

129418942353 is a deficient number, since it is larger than the sum of its proper divisors (43139647455).

129418942353 is an equidigital number, since it uses as much as digits as its factorization.

129418942353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43139647454.

The product of its digits is 1866240, while the sum is 51.

The spelling of 129418942353 in words is "one hundred twenty-nine billion, four hundred eighteen million, nine hundred forty-two thousand, three hundred fifty-three".