129294128364 has 24 divisors (see below), whose sum is σ = 301698808320. Its totient is φ = 43096255824.

The previous prime is 129294128363. The next prime is 129294128393. The reversal of 129294128364 is 463821492921.

It is not an unprimeable number, because it can be changed into a prime (129294128363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96417 + ... + 517575.

It is an arithmetic number, because the mean of its divisors is an integer number (12570783680).

Almost surely, 2^129294128364 is an apocalyptic number.

It is an amenable number.

129294128364 is an abundant number, since it is smaller than the sum of its proper divisors (172404679956).

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

129294128364 is a wasteful number, since it uses less digits than its factorization.

129294128364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446749 (or 446747 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The spelling of 129294128364 in words is "one hundred twenty-nine billion, two hundred ninety-four million, one hundred twenty-eight thousand, three hundred sixty-four".