129253000538 has 16 divisors (see below), whose sum is σ = 205141125120. Its totient is φ = 60907873536.

The previous prime is 129253000537. The next prime is 129253000559. The reversal of 129253000538 is 835000352921.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129253000531) 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, 8804570 + ... + 8819237.

It is an arithmetic number, because the mean of its divisors is an integer number (12821320320).

Almost surely, 2^129253000538 is an apocalyptic number.

129253000538 is a deficient number, since it is larger than the sum of its proper divisors (75888124582).

129253000538 is a wasteful number, since it uses less digits than its factorization.

129253000538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17624021.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 129253000538 in words is "one hundred twenty-nine billion, two hundred fifty-three million, five hundred thirty-eight", and thus it is an aban number.