18624303197 has 4 divisors (see below), whose sum is σ = 18625363680. Its totient is φ = 18623242716.

The previous prime is 18624303169. The next prime is 18624303211. The reversal of 18624303197 is 79130342681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18624303197 - 2⁸ = 18624302941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18624303497) 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, 503447 + ... + 539172.

It is an arithmetic number, because the mean of its divisors is an integer number (4656340920).

Almost surely, 2^18624303197 is an apocalyptic number.

It is an amenable number.

18624303197 is a deficient number, since it is larger than the sum of its proper divisors (1060483).

18624303197 is a wasteful number, since it uses less digits than its factorization.

18624303197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060482.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 18624303197 in words is "eighteen billion, six hundred twenty-four million, three hundred three thousand, one hundred ninety-seven".