129316415879 has 32 divisors (see below), whose sum is σ = 152758869120. Its totient is φ = 107156141568.

The previous prime is 129316415873. The next prime is 129316415911. The reversal of 129316415879 is 978514613921.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-129316415879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129316415873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56991557 + ... + 56993825.

It is an arithmetic number, because the mean of its divisors is an integer number (4773714660).

Almost surely, 2^129316415879 is an apocalyptic number.

129316415879 is a deficient number, since it is larger than the sum of its proper divisors (23442453241).

129316415879 is a wasteful number, since it uses less digits than its factorization.

129316415879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627.

The product of its digits is 3265920, while the sum is 56.

The spelling of 129316415879 in words is "one hundred twenty-nine billion, three hundred sixteen million, four hundred fifteen thousand, eight hundred seventy-nine".