128382574394 has 16 divisors (see below), whose sum is σ = 193990334400. Its totient is φ = 63720391584.

The previous prime is 128382574391. The next prime is 128382574399. The reversal of 128382574394 is 493475283821.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128382574391) 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, 111422 + ... + 518825.

It is an arithmetic number, because the mean of its divisors is an integer number (12124395900).

Almost surely, 2^128382574394 is an apocalyptic number.

128382574394 is a deficient number, since it is larger than the sum of its proper divisors (65607760006).

128382574394 is a wasteful number, since it uses less digits than its factorization.

128382574394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630997.

The product of its digits is 11612160, while the sum is 56.

The spelling of 128382574394 in words is "one hundred twenty-eight billion, three hundred eighty-two million, five hundred seventy-four thousand, three hundred ninety-four".