129409532933 has 8 divisors (see below), whose sum is σ = 131537581056. Its totient is φ = 127281697200.

The previous prime is 129409532929. The next prime is 129409532951. The reversal of 129409532933 is 339235904921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129409532933 - 2² = 129409532929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129409532033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589660 + ... + 1669082.

It is an arithmetic number, because the mean of its divisors is an integer number (16442197632).

Almost surely, 2^129409532933 is an apocalyptic number.

It is an amenable number.

129409532933 is a deficient number, since it is larger than the sum of its proper divisors (2128048123).

129409532933 is an equidigital number, since it uses as much as digits as its factorization.

129409532933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106195.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 129409532933 in words is "one hundred twenty-nine billion, four hundred nine million, five hundred thirty-two thousand, nine hundred thirty-three".