18354288484 has 27 divisors (see below), whose sum is σ = 37367948793. Its totient is φ = 7865310768.

The previous prime is 18354288479. The next prime is 18354288497. The reversal of 18354288484 is 48488245381.

The square root of 18354288484 is 135478.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12528324900 + 5825963584 = 111930^2 + 76328^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1891854 + ... + 1901530.

Almost surely, 2^18354288484 is an apocalyptic number.

18354288484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18354288484 is the 135478-th square number.

It is an amenable number.

18354288484 is an abundant number, since it is smaller than the sum of its proper divisors (19013660309).

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

18354288484 is an frugal number, since it uses more digits than its factorization.

18354288484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19372 (or 9686 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 55.

The spelling of 18354288484 in words is "eighteen billion, three hundred fifty-four million, two hundred eighty-eight thousand, four hundred eighty-four".