18024782080 has 36 divisors (see below), whose sum is σ = 43174988892. Its totient is φ = 7209912320.

The previous prime is 18024782077. The next prime is 18024782093. The reversal of 18024782080 is 8028742081.

It can be written as a sum of positive squares in 2 ways, for example, as 10896019456 + 7128762624 = 104384^2 + 84432^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7039651 + ... + 7042210.

It is an arithmetic number, because the mean of its divisors is an integer number (1199305247).

Almost surely, 2^18024782080 is an apocalyptic number.

18024782080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18024782080 is an abundant number, since it is smaller than the sum of its proper divisors (25150206812).

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

18024782080 is an equidigital number, since it uses as much as digits as its factorization.

18024782080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14081882 (or 14081868 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 18024782080 in words is "eighteen billion, twenty-four million, seven hundred eighty-two thousand, eighty".