128574194564 has 24 divisors (see below), whose sum is σ = 238176744960. Its totient is φ = 60626803104.

The previous prime is 128574194563. The next prime is 128574194633. The reversal of 128574194564 is 465491475821.

It is not an unprimeable number, because it can be changed into a prime (128574194563) 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, 12883364 + ... + 12893339.

It is an arithmetic number, because the mean of its divisors is an integer number (9924031040).

Almost surely, 2^128574194564 is an apocalyptic number.

It is an amenable number.

128574194564 is a deficient number, since it is larger than the sum of its proper divisors (109602550396).

128574194564 is a wasteful number, since it uses less digits than its factorization.

128574194564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25776779 (or 25776777 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 56.

The spelling of 128574194564 in words is "one hundred twenty-eight billion, five hundred seventy-four million, one hundred ninety-four thousand, five hundred sixty-four".