129133278104 has 16 divisors (see below), whose sum is σ = 243749898000. Its totient is φ = 64133305312.

The previous prime is 129133278083. The next prime is 129133278203. The reversal of 129133278104 is 401872331921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54165452 + ... + 54167835.

It is an arithmetic number, because the mean of its divisors is an integer number (15234368625).

Almost surely, 2^129133278104 is an apocalyptic number.

It is an amenable number.

129133278104 is a deficient number, since it is larger than the sum of its proper divisors (114616619896).

129133278104 is a wasteful number, since it uses less digits than its factorization.

129133278104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108333442 (or 108333438 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 129133278104 in words is "one hundred twenty-nine billion, one hundred thirty-three million, two hundred seventy-eight thousand, one hundred four".