129088630080 has 84 divisors (see below), whose sum is σ = 444011110452. Its totient is φ = 34423633920.

The previous prime is 129088630079. The next prime is 129088630109. The reversal of 129088630080 is 80036880921.

129088630080 is a `hidden beast` number, since 1 + 2 + 9 + 0 + 8 + 8 + 630 + 0 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38034360576 + 91054269504 = 195024^2 + 301752^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22408341 + ... + 22414100.

It is an arithmetic number, because the mean of its divisors is an integer number (5285846553).

Almost surely, 2^129088630080 is an apocalyptic number.

129088630080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129088630080 is an abundant number, since it is smaller than the sum of its proper divisors (314922480372).

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

129088630080 is a wasteful number, since it uses less digits than its factorization.

129088630080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44822464 (or 44822451 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 129088630080 in words is "one hundred twenty-nine billion, eighty-eight million, six hundred thirty thousand, eighty".