129352784924 has 48 divisors (see below), whose sum is σ = 249448139136. Its totient is φ = 58201886400.

The previous prime is 129352784923. The next prime is 129352784963. The reversal of 129352784924 is 429487253921.

Its product of digits (8709120) is a multiple of the sum of its prime divisors (21504).

It is a self number, because there is not a number n which added to its sum of digits gives 129352784924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129352784923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6454079 + ... + 6474089.

It is an arithmetic number, because the mean of its divisors is an integer number (5196836232).

Almost surely, 2^129352784924 is an apocalyptic number.

It is an amenable number.

129352784924 is a deficient number, since it is larger than the sum of its proper divisors (120095354212).

129352784924 is a wasteful number, since it uses less digits than its factorization.

129352784924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21506 (or 21504 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The spelling of 129352784924 in words is "one hundred twenty-nine billion, three hundred fifty-two million, seven hundred eighty-four thousand, nine hundred twenty-four".