18424842492 has 48 divisors (see below), whose sum is σ = 50460838400. Its totient is φ = 5121963072.

The previous prime is 18424842481. The next prime is 18424842493. The reversal of 18424842492 is 29424842481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18424842493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2960992 + ... + 2967207.

Almost surely, 2^18424842492 is an apocalyptic number.

18424842492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18424842492 is an abundant number, since it is smaller than the sum of its proper divisors (32035995908).

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

18424842492 is a wasteful number, since it uses less digits than its factorization.

18424842492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928250 (or 5928248 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The spelling of 18424842492 in words is "eighteen billion, four hundred twenty-four million, eight hundred forty-two thousand, four hundred ninety-two".