18822013460 has 12 divisors (see below), whose sum is σ = 39526228308. Its totient is φ = 7528805376.

The previous prime is 18822013429. The next prime is 18822013487. The reversal of 18822013460 is 6431022881.

It can be written as a sum of positive squares in 2 ways, for example, as 4499189776 + 14322823684 = 67076^2 + 119678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18822013460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470550317 + ... + 470550356.

It is an arithmetic number, because the mean of its divisors is an integer number (3293852359).

Almost surely, 2^18822013460 is an apocalyptic number.

18822013460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18822013460 is an abundant number, since it is smaller than the sum of its proper divisors (20704214848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18822013460 is a wasteful number, since it uses less digits than its factorization.

18822013460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941100682 (or 941100680 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 18822013460 in words is "eighteen billion, eight hundred twenty-two million, thirteen thousand, four hundred sixty".