18363416742681 has 32 divisors (see below), whose sum is σ = 26188001568000. Its totient is φ = 11423481350400.

The previous prime is 18363416742667. The next prime is 18363416742683. The reversal of 18363416742681 is 18624761436381.

It is not a de Polignac number, because 18363416742681 - 2¹⁹ = 18363416218393 is a prime.

It is a super-2 number, since 2×18363416742681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18363416742683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18663645 + ... + 19622906.

It is an arithmetic number, because the mean of its divisors is an integer number (818375049000).

Almost surely, 2^{18363416742681} is an apocalyptic number.

It is an amenable number.

18363416742681 is a deficient number, since it is larger than the sum of its proper divisors (7824584825319).

18363416742681 is a wasteful number, since it uses less digits than its factorization.

18363416742681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38286769.

The product of its digits is 27869184, while the sum is 60.

The spelling of 18363416742681 in words is "eighteen trillion, three hundred sixty-three billion, four hundred sixteen million, seven hundred forty-two thousand, six hundred eighty-one".