129372079291 has 16 divisors (see below), whose sum is σ = 159391266048. Its totient is φ = 102254839200.

The previous prime is 129372079283. The next prime is 129372079297. The reversal of 129372079291 is 192970273921.

It is a cyclic number.

It is not a de Polignac number, because 129372079291 - 2³ = 129372079283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129372079297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643705 + ... + 820426.

It is an arithmetic number, because the mean of its divisors is an integer number (9961954128).

Almost surely, 2^129372079291 is an apocalyptic number.

129372079291 is a deficient number, since it is larger than the sum of its proper divisors (30019186757).

129372079291 is a wasteful number, since it uses less digits than its factorization.

129372079291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465122.

The product of its (nonzero) digits is 857304, while the sum is 52.

The spelling of 129372079291 in words is "one hundred twenty-nine billion, three hundred seventy-two million, seventy-nine thousand, two hundred ninety-one".