18103286593 has 8 divisors (see below), whose sum is σ = 20696205888. Its totient is φ = 15512051184.

The previous prime is 18103286567. The next prime is 18103286603. The reversal of 18103286593 is 39568230181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18103286593 - 2⁹ = 18103286081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18103286533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397846 + ... + 441007.

It is an arithmetic number, because the mean of its divisors is an integer number (2587025736).

Almost surely, 2^18103286593 is an apocalyptic number.

It is an amenable number.

18103286593 is a deficient number, since it is larger than the sum of its proper divisors (2592919295).

18103286593 is an equidigital number, since it uses as much as digits as its factorization.

18103286593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841943.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 18103286593 in words is "eighteen billion, one hundred three million, two hundred eighty-six thousand, five hundred ninety-three".