129319385615 has 12 divisors (see below), whose sum is σ = 180519305976. Its totient is φ = 88676149968.

The previous prime is 129319385581. The next prime is 129319385627. The reversal of 129319385615 is 516583913921.

It is not a de Polignac number, because 129319385615 - 2¹² = 129319381519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 263916869 + ... + 263917358.

It is an arithmetic number, because the mean of its divisors is an integer number (15043275498).

Almost surely, 2^129319385615 is an apocalyptic number.

129319385615 is a deficient number, since it is larger than the sum of its proper divisors (51199920361).

129319385615 is an equidigital number, since it uses as much as digits as its factorization.

129319385615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527834246 (or 527834239 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 53.

The spelling of 129319385615 in words is "one hundred twenty-nine billion, three hundred nineteen million, three hundred eighty-five thousand, six hundred fifteen".