18032016863 has 8 divisors (see below), whose sum is σ = 20611789440. Its totient is φ = 15453186840.

The previous prime is 18032016809. The next prime is 18032016881. The reversal of 18032016863 is 36861023081.

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

It is not a de Polignac number, because 18032016863 - 2⁶ = 18032016799 is a prime.

It is a super-3 number, since 3×18032016863³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18032066863) 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, 194153 + ... + 271586.

It is an arithmetic number, because the mean of its divisors is an integer number (2576473680).

Almost surely, 2^18032016863 is an apocalyptic number.

18032016863 is a deficient number, since it is larger than the sum of its proper divisors (2579772577).

18032016863 is an equidigital number, since it uses as much as digits as its factorization.

18032016863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471277.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 18032016863 in words is "eighteen billion, thirty-two million, sixteen thousand, eight hundred sixty-three".