18596237749 has 2 divisors, whose sum is σ = 18596237750. Its totient is φ = 18596237748.

The previous prime is 18596237741. The next prime is 18596237753. The reversal of 18596237749 is 94773269581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17147902500 + 1448335249 = 130950^2 + 38057^2 .

It is a cyclic number.

It is not a de Polignac number, because 18596237749 - 2³ = 18596237741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18596237741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9298118874 + 9298118875.

It is an arithmetic number, because the mean of its divisors is an integer number (9298118875).

Almost surely, 2^18596237749 is an apocalyptic number.

It is an amenable number.

18596237749 is a deficient number, since it is larger than the sum of its proper divisors (1).

18596237749 is an equidigital number, since it uses as much as digits as its factorization.

18596237749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 61.

The spelling of 18596237749 in words is "eighteen billion, five hundred ninety-six million, two hundred thirty-seven thousand, seven hundred forty-nine".