18108024019 has 4 divisors (see below), whose sum is σ = 18115147296. Its totient is φ = 18100900744.

The previous prime is 18108024013. The next prime is 18108024023. The reversal of 18108024019 is 91042080181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18108024019 - 2⁵ = 18108023987 is a prime.

It is a super-2 number, since 2×18108024019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18108024013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3557824 + ... + 3562909.

It is an arithmetic number, because the mean of its divisors is an integer number (4528786824).

Almost surely, 2^18108024019 is an apocalyptic number.

18108024019 is a deficient number, since it is larger than the sum of its proper divisors (7123277).

18108024019 is an equidigital number, since it uses as much as digits as its factorization.

18108024019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123276.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 18108024019 in words is "eighteen billion, one hundred eight million, twenty-four thousand, nineteen".