18743616548713 has 16 divisors (see below), whose sum is σ = 21430761431040. Its totient is φ = 16058844306000.

The previous prime is 18743616548677. The next prime is 18743616548731. The reversal of 18743616548713 is 31784561634781.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18743616548713 is a prime.

It is a super-2 number, since 2×18743616548713² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18743616548743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195379228 + ... + 195475138.

It is an arithmetic number, because the mean of its divisors is an integer number (1339422589440).

Almost surely, 2^{18743616548713} is an apocalyptic number.

It is an amenable number.

18743616548713 is a deficient number, since it is larger than the sum of its proper divisors (2687144882327).

18743616548713 is an equidigital number, since it uses as much as digits as its factorization.

18743616548713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107988.

The product of its digits is 81285120, while the sum is 64.

The spelling of 18743616548713 in words is "eighteen trillion, seven hundred forty-three billion, six hundred sixteen million, five hundred forty-eight thousand, seven hundred thirteen".