128574194563 has 2 divisors, whose sum is σ = 128574194564. Its totient is φ = 128574194562.

The previous prime is 128574194503. The next prime is 128574194633. The reversal of 128574194563 is 365491475821.

It is a weak prime.

It is an emirp because it is prime and its reverse (365491475821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128574194563 - 2⁹ = 128574194051 is a prime.

It is not a weakly prime, because it can be changed into another prime (128574194503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64287097281 + 64287097282.

It is an arithmetic number, because the mean of its divisors is an integer number (64287097282).

Almost surely, 2^128574194563 is an apocalyptic number.

128574194563 is a deficient number, since it is larger than the sum of its proper divisors (1).

128574194563 is an equidigital number, since it uses as much as digits as its factorization.

128574194563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 55.

The spelling of 128574194563 in words is "one hundred twenty-eight billion, five hundred seventy-four million, one hundred ninety-four thousand, five hundred sixty-three".