129373513752 has 64 divisors (see below), whose sum is σ = 369733190400. Its totient is φ = 36954403200.

The previous prime is 129373513741. The next prime is 129373513783. The reversal of 129373513752 is 257315373921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573627 + ... + 766677.

It is an arithmetic number, because the mean of its divisors is an integer number (5777081100).

Almost surely, 2^129373513752 is an apocalyptic number.

129373513752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129373513752 is an abundant number, since it is smaller than the sum of its proper divisors (240359676648).

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

129373513752 is a wasteful number, since it uses less digits than its factorization.

129373513752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197056 (or 197052 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 48.

The spelling of 129373513752 in words is "one hundred twenty-nine billion, three hundred seventy-three million, five hundred thirteen thousand, seven hundred fifty-two".