129252727196 has 6 divisors (see below), whose sum is σ = 226192272600. Its totient is φ = 64626363596.

The previous prime is 129252727171. The next prime is 129252727199. The reversal of 129252727196 is 691727252921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129252727199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16156590896 + ... + 16156590903.

It is an arithmetic number, because the mean of its divisors is an integer number (37698712100).

Almost surely, 2^129252727196 is an apocalyptic number.

It is an amenable number.

129252727196 is a deficient number, since it is larger than the sum of its proper divisors (96939545404).

129252727196 is a wasteful number, since it uses less digits than its factorization.

129252727196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32313181803 (or 32313181801 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 53.

The spelling of 129252727196 in words is "one hundred twenty-nine billion, two hundred fifty-two million, seven hundred twenty-seven thousand, one hundred ninety-six".