129815000635 has 16 divisors (see below), whose sum is σ = 158289228000. Its totient is φ = 102190878976.

The previous prime is 129815000617. The next prime is 129815000659. The reversal of 129815000635 is 536000518921.

It is a cyclic number.

It is not a de Polignac number, because 129815000635 - 2¹⁹ = 129814476347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734530 + ... + 893959.

It is an arithmetic number, because the mean of its divisors is an integer number (9893076750).

Almost surely, 2^129815000635 is an apocalyptic number.

129815000635 is a deficient number, since it is larger than the sum of its proper divisors (28474227365).

129815000635 is a wasteful number, since it uses less digits than its factorization.

129815000635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628750.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 129815000635 in words is "one hundred twenty-nine billion, eight hundred fifteen million, six hundred thirty-five", and thus it is an aban number.