18889795574 has 8 divisors (see below), whose sum is σ = 30514285200. Its totient is φ = 8718367176.

The previous prime is 18889795559. The next prime is 18889795577. The reversal of 18889795574 is 47559798881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18889795498 and 18889795507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18889795577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363265274 + ... + 363265325.

It is an arithmetic number, because the mean of its divisors is an integer number (3814285650).

Almost surely, 2^18889795574 is an apocalyptic number.

18889795574 is a deficient number, since it is larger than the sum of its proper divisors (11624489626).

18889795574 is a wasteful number, since it uses less digits than its factorization.

18889795574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726530614.

The product of its digits is 203212800, while the sum is 71.

The spelling of 18889795574 in words is "eighteen billion, eight hundred eighty-nine million, seven hundred ninety-five thousand, five hundred seventy-four".