18292910189 has 2 divisors, whose sum is σ = 18292910190. Its totient is φ = 18292910188.

The previous prime is 18292910179. The next prime is 18292910257. The reversal of 18292910189 is 98101929281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18148670089 + 144240100 = 134717^2 + 12010^2 .

It is a cyclic number.

It is not a de Polignac number, because 18292910189 - 2⁸ = 18292909933 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18292910179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9146455094 + 9146455095.

It is an arithmetic number, because the mean of its divisors is an integer number (9146455095).

Almost surely, 2^18292910189 is an apocalyptic number.

It is an amenable number.

18292910189 is a deficient number, since it is larger than the sum of its proper divisors (1).

18292910189 is an equidigital number, since it uses as much as digits as its factorization.

18292910189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 18292910189 in words is "eighteen billion, two hundred ninety-two million, nine hundred ten thousand, one hundred eighty-nine".