129409532934 has 64 divisors (see below), whose sum is σ = 283800084480. Its totient is φ = 39013873920.

The previous prime is 129409532929. The next prime is 129409532951. The reversal of 129409532934 is 439235904921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10332444 + ... + 10344960.

It is an arithmetic number, because the mean of its divisors is an integer number (4434376320).

Almost surely, 2^129409532934 is an apocalyptic number.

129409532934 is an abundant number, since it is smaller than the sum of its proper divisors (154390551546).

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

129409532934 is a wasteful number, since it uses less digits than its factorization.

129409532934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13325.

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 129409532934 in words is "one hundred twenty-nine billion, four hundred nine million, five hundred thirty-two thousand, nine hundred thirty-four".