129989058279 has 16 divisors (see below), whose sum is σ = 175237945344. Its totient is φ = 85701764000.

The previous prime is 129989058253. The next prime is 129989058289. The reversal of 129989058279 is 972850989921.

It is a cyclic number.

It is not a de Polignac number, because 129989058279 - 2²⁴ = 129972281063 is a prime.

It is a super-2 number, since 2×129989058279² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129989058229) 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, 12934 + ... + 510044.

It is an arithmetic number, because the mean of its divisors is an integer number (10952371584).

Almost surely, 2^129989058279 is an apocalyptic number.

129989058279 is a deficient number, since it is larger than the sum of its proper divisors (45248887065).

129989058279 is a wasteful number, since it uses less digits than its factorization.

129989058279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498078.

The product of its (nonzero) digits is 58786560, while the sum is 69.

The spelling of 129989058279 in words is "one hundred twenty-nine billion, nine hundred eighty-nine million, fifty-eight thousand, two hundred seventy-nine".