129107442654 has 48 divisors (see below), whose sum is σ = 290929878720. Its totient is φ = 41342633280.

The previous prime is 129107442623. The next prime is 129107442677. The reversal of 129107442654 is 456244701921.

129107442654 = 29462² + 29463² + ... + 29609².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1174317 + ... + 1279544.

It is an arithmetic number, because the mean of its divisors is an integer number (6061039140).

Almost surely, 2^129107442654 is an apocalyptic number.

129107442654 is an abundant number, since it is smaller than the sum of its proper divisors (161822436066).

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

129107442654 is a wasteful number, since it uses less digits than its factorization.

129107442654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453985 (or 2453982 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 129107442654 in words is "one hundred twenty-nine billion, one hundred seven million, four hundred forty-two thousand, six hundred fifty-four".