18294450530 has 16 divisors (see below), whose sum is σ = 32944931064. Its totient is φ = 7314464640.

The previous prime is 18294450497. The next prime is 18294450541. The reversal of 18294450530 is 3505449281.

It can be written as a sum of positive squares in 4 ways, for example, as 17110471249 + 1183979281 = 130807^2 + 34409^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391211 + ... + 435470.

Almost surely, 2^18294450530 is an apocalyptic number.

18294450530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18294450530 is a deficient number, since it is larger than the sum of its proper divisors (14650480534).

18294450530 is a wasteful number, since it uses less digits than its factorization.

18294450530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828901.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 18294450530 in words is "eighteen billion, two hundred ninety-four million, four hundred fifty thousand, five hundred thirty".