18453388530 has 16 divisors (see below), whose sum is σ = 44288132544. Its totient is φ = 4920903600.

The previous prime is 18453388529. The next prime is 18453388537. The reversal of 18453388530 is 3588335481.

It is a self number, because there is not a number n which added to its sum of digits gives 18453388530.

It is not an unprimeable number, because it can be changed into a prime (18453388537) 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, 307556446 + ... + 307556505.

It is an arithmetic number, because the mean of its divisors is an integer number (2768008284).

Almost surely, 2^18453388530 is an apocalyptic number.

18453388530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18453388530 is an abundant number, since it is smaller than the sum of its proper divisors (25834744014).

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

18453388530 is a wasteful number, since it uses less digits than its factorization.

18453388530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615112961.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 18453388530 in words is "eighteen billion, four hundred fifty-three million, three hundred eighty-eight thousand, five hundred thirty".