18768066008231 has 16 divisors (see below), whose sum is σ = 19425835376640. Its totient is φ = 18111005441760.

The previous prime is 18768066008203. The next prime is 18768066008233. The reversal of 18768066008231 is 13280066086781.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18768066008231 is a prime.

It is a super-2 number, since 2×18768066008231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18768066008233) 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, 538196726 + ... + 538231596.

It is an arithmetic number, because the mean of its divisors is an integer number (1214114711040).

Almost surely, 2^{18768066008231} is an apocalyptic number.

18768066008231 is a deficient number, since it is larger than the sum of its proper divisors (657769368409).

18768066008231 is a wasteful number, since it uses less digits than its factorization.

18768066008231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44494.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 18768066008231 in words is "eighteen trillion, seven hundred sixty-eight billion, sixty-six million, eight thousand, two hundred thirty-one".