129044320444 has 96 divisors (see below), whose sum is σ = 260285566464. Its totient is φ = 55513624320.

The previous prime is 129044320429. The next prime is 129044320459. The reversal of 129044320444 is 444023440921.

It is an interprime number because it is at equal distance from previous prime (129044320429) and next prime (129044320459).

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, 23705587 + ... + 23711029.

It is an arithmetic number, because the mean of its divisors is an integer number (2711307984).

Almost surely, 2^129044320444 is an apocalyptic number.

It is an amenable number.

129044320444 is an abundant number, since it is smaller than the sum of its proper divisors (131241246020).

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

129044320444 is a wasteful number, since it uses less digits than its factorization.

129044320444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5987 (or 5985 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 129044320444 in words is "one hundred twenty-nine billion, forty-four million, three hundred twenty thousand, four hundred forty-four".