18028468894 has 8 divisors (see below), whose sum is σ = 27044631288. Its totient is φ = 9013591800.

The previous prime is 18028468891. The next prime is 18028468897. The reversal of 18028468894 is 49886482081.

It is an interprime number because it is at equal distance from previous prime (18028468891) and next prime (18028468897).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028468891) 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, 285457 + ... + 342844.

It is an arithmetic number, because the mean of its divisors is an integer number (3380578911).

Almost surely, 2^18028468894 is an apocalyptic number.

18028468894 is a deficient number, since it is larger than the sum of its proper divisors (9016162394).

18028468894 is a wasteful number, since it uses less digits than its factorization.

18028468894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642650.

The product of its (nonzero) digits is 7077888, while the sum is 58.

The spelling of 18028468894 in words is "eighteen billion, twenty-eight million, four hundred sixty-eight thousand, eight hundred ninety-four".