18936365594 has 8 divisors (see below), whose sum is σ = 28608898080. Its totient is φ = 9400066236.

The previous prime is 18936365537. The next prime is 18936365597. The reversal of 18936365594 is 49556363981.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (18936365597) 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, 34057934 + ... + 34058489.

It is an arithmetic number, because the mean of its divisors is an integer number (3576112260).

Almost surely, 2^18936365594 is an apocalyptic number.

18936365594 is a deficient number, since it is larger than the sum of its proper divisors (9672532486).

18936365594 is a wasteful number, since it uses less digits than its factorization.

18936365594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68116564.

The product of its digits is 20995200, while the sum is 59.

The spelling of 18936365594 in words is "eighteen billion, nine hundred thirty-six million, three hundred sixty-five thousand, five hundred ninety-four".