18399810249284 has 12 divisors (see below), whose sum is σ = 32397211912464. Its totient is φ = 9143463988584.

The previous prime is 18399810249283. The next prime is 18399810249371. The reversal of 18399810249284 is 48294201899381.

It is not an unprimeable number, because it can be changed into a prime (18399810249283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14110283282 + ... + 14110284585.

It is an arithmetic number, because the mean of its divisors is an integer number (2699767659372).

Almost surely, 2^{18399810249284} is an apocalyptic number.

It is an amenable number.

18399810249284 is a deficient number, since it is larger than the sum of its proper divisors (13997401663180).

18399810249284 is a wasteful number, since it uses less digits than its factorization.

18399810249284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28220568034 (or 28220568032 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 68.

The spelling of 18399810249284 in words is "eighteen trillion, three hundred ninety-nine billion, eight hundred ten million, two hundred forty-nine thousand, two hundred eighty-four".