128392935852 has 24 divisors (see below), whose sum is σ = 299605521600. Its totient is φ = 42794501776.

The previous prime is 128392935851. The next prime is 128392935883. The reversal of 128392935852 is 258539293821.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 128392935792 and 128392935801.

It is not an unprimeable number, because it can be changed into a prime (128392935851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219702 + ... + 552317.

It is an arithmetic number, because the mean of its divisors is an integer number (12483563400).

Almost surely, 2^128392935852 is an apocalyptic number.

128392935852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128392935852 is an abundant number, since it is smaller than the sum of its proper divisors (171212585748).

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

128392935852 is a wasteful number, since it uses less digits than its factorization.

128392935852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785885 (or 785883 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The spelling of 128392935852 in words is "one hundred twenty-eight billion, three hundred ninety-two million, nine hundred thirty-five thousand, eight hundred fifty-two".