18682296691 has 2 divisors, whose sum is σ = 18682296692. Its totient is φ = 18682296690.

The previous prime is 18682296617. The next prime is 18682296739. The reversal of 18682296691 is 19669228681.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18682296691 is a prime.

It is not a weakly prime, because it can be changed into another prime (18682296601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9341148345 + 9341148346.

It is an arithmetic number, because the mean of its divisors is an integer number (9341148346).

Almost surely, 2^18682296691 is an apocalyptic number.

18682296691 is a deficient number, since it is larger than the sum of its proper divisors (1).

18682296691 is an equidigital number, since it uses as much as digits as its factorization.

18682296691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 58.

The spelling of 18682296691 in words is "eighteen billion, six hundred eighty-two million, two hundred ninety-six thousand, six hundred ninety-one".