18399714363745 has 64 divisors (see below), whose sum is σ = 26494095237120. Its totient is φ = 12088324396800.

The previous prime is 18399714363691. The next prime is 18399714363749. The reversal of 18399714363745 is 54736341799381.

It is a happy number.

It is not a de Polignac number, because 18399714363745 - 2⁷ = 18399714363617 is a prime.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (18399714363749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 526606486 + ... + 526641424.

It is an arithmetic number, because the mean of its divisors is an integer number (413970238080).

Almost surely, 2^{18399714363745} is an apocalyptic number.

It is an amenable number.

18399714363745 is a deficient number, since it is larger than the sum of its proper divisors (8094380873375).

18399714363745 is a wasteful number, since it uses less digits than its factorization.

18399714363745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50686.

The product of its digits is 411505920, while the sum is 70.

The spelling of 18399714363745 in words is "eighteen trillion, three hundred ninety-nine billion, seven hundred fourteen million, three hundred sixty-three thousand, seven hundred forty-five".