18092749289 has 2 divisors, whose sum is σ = 18092749290. Its totient is φ = 18092749288.

The previous prime is 18092749271. The next prime is 18092749319. The reversal of 18092749289 is 98294729081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15552085264 + 2540664025 = 124708^2 + 50405^2 .

It is a cyclic number.

It is not a de Polignac number, because 18092749289 - 2⁸ = 18092749033 is a prime.

It is a super-2 number, since 2×18092749289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18092749229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9046374644 + 9046374645.

It is an arithmetic number, because the mean of its divisors is an integer number (9046374645).

Almost surely, 2^18092749289 is an apocalyptic number.

It is an amenable number.

18092749289 is a deficient number, since it is larger than the sum of its proper divisors (1).

18092749289 is an equidigital number, since it uses as much as digits as its factorization.

18092749289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 18092749289 in words is "eighteen billion, ninety-two million, seven hundred forty-nine thousand, two hundred eighty-nine".