18849269743 has 2 divisors, whose sum is σ = 18849269744. Its totient is φ = 18849269742.

The previous prime is 18849269737. The next prime is 18849269863. The reversal of 18849269743 is 34796294881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18849269743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18849239743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9424634871 + 9424634872.

It is an arithmetic number, because the mean of its divisors is an integer number (9424634872).

Almost surely, 2^18849269743 is an apocalyptic number.

18849269743 is a deficient number, since it is larger than the sum of its proper divisors (1).

18849269743 is an equidigital number, since it uses as much as digits as its factorization.

18849269743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The spelling of 18849269743 in words is "eighteen billion, eight hundred forty-nine million, two hundred sixty-nine thousand, seven hundred forty-three".