18275289793 has 2 divisors, whose sum is σ = 18275289794. Its totient is φ = 18275289792.

The previous prime is 18275289757. The next prime is 18275289797. The reversal of 18275289793 is 39798257281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12762672784 + 5512617009 = 112972^2 + 74247^2 .

It is a cyclic number.

It is not a de Polignac number, because 18275289793 - 2¹³ = 18275281601 is a prime.

It is not a weakly prime, because it can be changed into another prime (18275289797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9137644896 + 9137644897.

It is an arithmetic number, because the mean of its divisors is an integer number (9137644897).

Almost surely, 2^18275289793 is an apocalyptic number.

It is an amenable number.

18275289793 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275289793 is an equidigital number, since it uses as much as digits as its factorization.

18275289793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 61.

The spelling of 18275289793 in words is "eighteen billion, two hundred seventy-five million, two hundred eighty-nine thousand, seven hundred ninety-three".