18655325979683 has 2 divisors, whose sum is σ = 18655325979684. Its totient is φ = 18655325979682.

The previous prime is 18655325979679. The next prime is 18655325979707. The reversal of 18655325979683 is 38697952355681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18655325979683 - 2² = 18655325979679 is a prime.

It is not a weakly prime, because it can be changed into another prime (18655325979383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9327662989841 + 9327662989842.

It is an arithmetic number, because the mean of its divisors is an integer number (9327662989842).

Almost surely, 2^{18655325979683} is an apocalyptic number.

18655325979683 is a deficient number, since it is larger than the sum of its proper divisors (1).

18655325979683 is an equidigital number, since it uses as much as digits as its factorization.

18655325979683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328000, while the sum is 77.

The spelling of 18655325979683 in words is "eighteen trillion, six hundred fifty-five billion, three hundred twenty-five million, nine hundred seventy-nine thousand, six hundred eighty-three".