129418970641 has 4 divisors (see below), whose sum is σ = 135045882432. Its totient is φ = 123792058852.

The previous prime is 129418970621. The next prime is 129418970699. The reversal of 129418970641 is 146079814921.

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 129418970641 - 2²⁹ = 128882099729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129418970621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813455861 + ... + 2813455906.

It is an arithmetic number, because the mean of its divisors is an integer number (33761470608).

Almost surely, 2^129418970641 is an apocalyptic number.

It is an amenable number.

129418970641 is a deficient number, since it is larger than the sum of its proper divisors (5626911791).

129418970641 is an equidigital number, since it uses as much as digits as its factorization.

129418970641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626911790.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 129418970641 in words is "one hundred twenty-nine billion, four hundred eighteen million, nine hundred seventy thousand, six hundred forty-one".