18398300866 has 16 divisors (see below), whose sum is σ = 30806458848. Its totient is φ = 8168378400.

The previous prime is 18398300861. The next prime is 18398300867. The reversal of 18398300866 is 66800389381.

It is a super-3 number, since 3×18398300866³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18398300861) 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, 9723315 + ... + 9725206.

It is an arithmetic number, because the mean of its divisors is an integer number (1925403678).

Almost surely, 2^18398300866 is an apocalyptic number.

18398300866 is a deficient number, since it is larger than the sum of its proper divisors (12408157982).

18398300866 is a wasteful number, since it uses less digits than its factorization.

18398300866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19448577.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 18398300866 in words is "eighteen billion, three hundred ninety-eight million, three hundred thousand, eight hundred sixty-six".