18836422603 has 8 divisors (see below), whose sum is σ = 20368798272. Its totient is φ = 17351197056.

The previous prime is 18836422589. The next prime is 18836422613. The reversal of 18836422603 is 30622463881.

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

It is a cyclic number.

It is not a de Polignac number, because 18836422603 - 2²⁵ = 18802868171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18836422603.

It is not an unprimeable number, because it can be changed into a prime (18836422613) 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, 11786700 + ... + 11788297.

It is an arithmetic number, because the mean of its divisors is an integer number (2546099784).

Almost surely, 2^18836422603 is an apocalyptic number.

18836422603 is a deficient number, since it is larger than the sum of its proper divisors (1532375669).

18836422603 is a wasteful number, since it uses less digits than its factorization.

18836422603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23575061.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 18836422603 in words is "eighteen billion, eight hundred thirty-six million, four hundred twenty-two thousand, six hundred three".