18822582012 has 48 divisors (see below), whose sum is σ = 47306567840. Its totient is φ = 5790486528.

The previous prime is 18822582007. The next prime is 18822582067. The reversal of 18822582012 is 21028522881.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386168 + ... + 1399680.

Almost surely, 2^18822582012 is an apocalyptic number.

18822582012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18822582012 is an abundant number, since it is smaller than the sum of its proper divisors (28483985828).

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

18822582012 is a wasteful number, since it uses less digits than its factorization.

18822582012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22462 (or 22460 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The spelling of 18822582012 in words is "eighteen billion, eight hundred twenty-two million, five hundred eighty-two thousand, twelve".