18436988339248 has 20 divisors (see below), whose sum is σ = 35723968377328. Its totient is φ = 9217899725760.

The previous prime is 18436988339243. The next prime is 18436988339311. The reversal of 18436988339248 is 84293388963481.

It is not an unprimeable number, because it can be changed into a prime (18436988339243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36896811 + ... + 37393162.

Almost surely, 2^{18436988339248} is an apocalyptic number.

It is an amenable number.

18436988339248 is a deficient number, since it is larger than the sum of its proper divisors (17286980038080).

18436988339248 is a wasteful number, since it uses less digits than its factorization.

18436988339248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74305492 (or 74305486 counting only the distinct ones).

The product of its digits is 1719926784, while the sum is 76.

The spelling of 18436988339248 in words is "eighteen trillion, four hundred thirty-six billion, nine hundred eighty-eight million, three hundred thirty-nine thousand, two hundred forty-eight".