18228122867 has 2 divisors, whose sum is σ = 18228122868. Its totient is φ = 18228122866.

The previous prime is 18228122839. The next prime is 18228122881. The reversal of 18228122867 is 76822182281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18228122867 - 2⁸ = 18228122611 is a prime.

It is not a weakly prime, because it can be changed into another prime (18228122807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9114061433 + 9114061434.

It is an arithmetic number, because the mean of its divisors is an integer number (9114061434).

Almost surely, 2^18228122867 is an apocalyptic number.

18228122867 is a deficient number, since it is larger than the sum of its proper divisors (1).

18228122867 is an equidigital number, since it uses as much as digits as its factorization.

18228122867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 344064, while the sum is 47.

The spelling of 18228122867 in words is "eighteen billion, two hundred twenty-eight million, one hundred twenty-two thousand, eight hundred sixty-seven".