18354948424 has 16 divisors (see below), whose sum is σ = 35602271100. Its totient is φ = 8861009472.

The previous prime is 18354948389. The next prime is 18354948509. The reversal of 18354948424 is 42484945381.

It can be written as a sum of positive squares in 2 ways, for example, as 18301219524 + 53728900 = 135282^2 + 7330^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39557847 + ... + 39558310.

Almost surely, 2^18354948424 is an apocalyptic number.

It is an amenable number.

18354948424 is a deficient number, since it is larger than the sum of its proper divisors (17247322676).

18354948424 is a wasteful number, since it uses less digits than its factorization.

18354948424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79116192 (or 79116188 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 52.

The spelling of 18354948424 in words is "eighteen billion, three hundred fifty-four million, nine hundred forty-eight thousand, four hundred twenty-four".