129796068 has 48 divisors (see below), whose sum is σ = 321950720. Its totient is φ = 40582944.

The previous prime is 129796021. The next prime is 129796097. The reversal of 129796068 is 860697921.

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, 20721 + ... + 26247.

Almost surely, 2^129796068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129796068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160975360).

129796068 is an abundant number, since it is smaller than the sum of its proper divisors (192154652).

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

129796068 is a wasteful number, since it uses less digits than its factorization.

129796068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656 (or 5654 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 129796068 is about 11392.8077311960. The cubic root of 129796068 is about 506.3146714516.

The spelling of 129796068 in words is "one hundred twenty-nine million, seven hundred ninety-six thousand, sixty-eight".