18190422611 has 2 divisors, whose sum is σ = 18190422612. Its totient is φ = 18190422610.

The previous prime is 18190422587. The next prime is 18190422617. The reversal of 18190422611 is 11622409181.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18190422611 is a prime.

It is not a weakly prime, because it can be changed into another prime (18190422617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095211305 + 9095211306.

It is an arithmetic number, because the mean of its divisors is an integer number (9095211306).

Almost surely, 2^18190422611 is an apocalyptic number.

18190422611 is a deficient number, since it is larger than the sum of its proper divisors (1).

18190422611 is an equidigital number, since it uses as much as digits as its factorization.

18190422611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 18190422611 in words is "eighteen billion, one hundred ninety million, four hundred twenty-two thousand, six hundred eleven".