2593481809 has 2 divisors, whose sum is σ = 2593481810. Its totient is φ = 2593481808.

The previous prime is 2593481743. The next prime is 2593481837. The reversal of 2593481809 is 9081843952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1635393600 + 958088209 = 40440^2 + 30953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2593481809 is a prime.

It is a super-2 number, since 2×2593481809² = 13452295787227824962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2593485809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296740904 + 1296740905.

It is an arithmetic number, because the mean of its divisors is an integer number (1296740905).

Almost surely, 2^2593481809 is an apocalyptic number.

It is an amenable number.

2593481809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2593481809 is an equidigital number, since it uses as much as digits as its factorization.

2593481809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 2593481809 is about 50926.2389049103. The cubic root of 2593481809 is about 1373.9188078432.

The spelling of 2593481809 in words is "two billion, five hundred ninety-three million, four hundred eighty-one thousand, eight hundred nine".