129390101994 has 32 divisors (see below), whose sum is σ = 260084160000. Its totient is φ = 42913254384.

The previous prime is 129390101933. The next prime is 129390102001. The reversal of 129390101994 is 499101093921.

It is a happy number.

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, 884907 + ... + 1020705.

It is an arithmetic number, because the mean of its divisors is an integer number (8127630000).

Almost surely, 2^129390101994 is an apocalyptic number.

129390101994 is an abundant number, since it is smaller than the sum of its proper divisors (130694058006).

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

129390101994 is a wasteful number, since it uses less digits than its factorization.

129390101994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136602.

The product of its (nonzero) digits is 157464, while the sum is 48.

The spelling of 129390101994 in words is "one hundred twenty-nine billion, three hundred ninety million, one hundred one thousand, nine hundred ninety-four".