18284493207 has 4 divisors (see below), whose sum is σ = 24379324280. Its totient is φ = 12189662136.

The previous prime is 18284493187. The next prime is 18284493257. The reversal of 18284493207 is 70239448281.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18284493207 - 2⁸ = 18284492951 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 (18284493257) 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, 3047415532 + ... + 3047415537.

It is an arithmetic number, because the mean of its divisors is an integer number (6094831070).

Almost surely, 2^18284493207 is an apocalyptic number.

18284493207 is a deficient number, since it is larger than the sum of its proper divisors (6094831073).

18284493207 is an equidigital number, since it uses as much as digits as its factorization.

18284493207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094831072.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 18284493207 in words is "eighteen billion, two hundred eighty-four million, four hundred ninety-three thousand, two hundred seven".