128929013750 has 40 divisors (see below), whose sum is σ = 241722680232. Its totient is φ = 51559200000.

The previous prime is 128929013749. The next prime is 128929013767. The reversal of 128929013750 is 57310929821.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 128929013695 and 128929013704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6591485 + ... + 6611015.

Almost surely, 2^128929013750 is an apocalyptic number.

128929013750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128929013750 is a deficient number, since it is larger than the sum of its proper divisors (112793666482).

128929013750 is an equidigital number, since it uses as much as digits as its factorization.

128929013750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24834 (or 24819 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 128929013750 in words is "one hundred twenty-eight billion, nine hundred twenty-nine million, thirteen thousand, seven hundred fifty".