18089962243 has 2 divisors, whose sum is σ = 18089962244. Its totient is φ = 18089962242.

The previous prime is 18089962183. The next prime is 18089962321. The reversal of 18089962243 is 34226998081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18089962243 - 2²⁹ = 17553091331 is a prime.

It is not a weakly prime, because it can be changed into another prime (18089962343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9044981121 + 9044981122.

It is an arithmetic number, because the mean of its divisors is an integer number (9044981122).

Almost surely, 2^18089962243 is an apocalyptic number.

18089962243 is a deficient number, since it is larger than the sum of its proper divisors (1).

18089962243 is an equidigital number, since it uses as much as digits as its factorization.

18089962243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 18089962243 in words is "eighteen billion, eighty-nine million, nine hundred sixty-two thousand, two hundred forty-three".