129239538594 has 16 divisors (see below), whose sum is σ = 266817112320. Its totient is φ = 41690173680.

The previous prime is 129239538581. The next prime is 129239538683. The reversal of 129239538594 is 495835932921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347417929 + ... + 347418300.

It is an arithmetic number, because the mean of its divisors is an integer number (16676069520).

Almost surely, 2^129239538594 is an apocalyptic number.

129239538594 is an abundant number, since it is smaller than the sum of its proper divisors (137577573726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129239538594 is a wasteful number, since it uses less digits than its factorization.

129239538594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694836265.

The product of its digits is 20995200, while the sum is 60.

The spelling of 129239538594 in words is "one hundred twenty-nine billion, two hundred thirty-nine million, five hundred thirty-eight thousand, five hundred ninety-four".