18214001885 has 16 divisors (see below), whose sum is σ = 22350940416. Its totient is φ = 14242584768.

The previous prime is 18214001881. The next prime is 18214001891. The reversal of 18214001885 is 58810041281.

It is a cyclic number.

It is not a de Polignac number, because 18214001885 - 2² = 18214001881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18214001881) 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, 131522 + ... + 231788.

It is an arithmetic number, because the mean of its divisors is an integer number (1396933776).

Almost surely, 2^18214001885 is an apocalyptic number.

It is an amenable number.

18214001885 is a deficient number, since it is larger than the sum of its proper divisors (4136938531).

18214001885 is a wasteful number, since it uses less digits than its factorization.

18214001885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101092.

The product of its (nonzero) digits is 20480, while the sum is 38.

The spelling of 18214001885 in words is "eighteen billion, two hundred fourteen million, one thousand, eight hundred eighty-five".