128706574838 has 16 divisors (see below), whose sum is σ = 193655024640. Its totient is φ = 64155025896.

The previous prime is 128706574817. The next prime is 128706574853. The reversal of 128706574838 is 838475607821.

128706574838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2127395 + ... + 2187057.

It is an arithmetic number, because the mean of its divisors is an integer number (12103439040).

Almost surely, 2^128706574838 is an apocalyptic number.

128706574838 is a deficient number, since it is larger than the sum of its proper divisors (64948449802).

128706574838 is a wasteful number, since it uses less digits than its factorization.

128706574838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62971.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 128706574838 in words is "one hundred twenty-eight billion, seven hundred six million, five hundred seventy-four thousand, eight hundred thirty-eight".