129982789428 has 24 divisors (see below), whose sum is σ = 303314493888. Its totient is φ = 43324550976.

The previous prime is 129982789397. The next prime is 129982789451. The reversal of 129982789428 is 824987289921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199401 + ... + 547472.

It is an arithmetic number, because the mean of its divisors is an integer number (12638103912).

Almost surely, 2^129982789428 is an apocalyptic number.

It is an amenable number.

129982789428 is an abundant number, since it is smaller than the sum of its proper divisors (173331704460).

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

129982789428 is a wasteful number, since it uses less digits than its factorization.

129982789428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761383 (or 761381 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 69.

The spelling of 129982789428 in words is "one hundred twenty-nine billion, nine hundred eighty-two million, seven hundred eighty-nine thousand, four hundred twenty-eight".