8636725459 has 2 divisors, whose sum is σ = 8636725460. Its totient is φ = 8636725458.

The previous prime is 8636725387. The next prime is 8636725511. The reversal of 8636725459 is 9545276368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8636725459 - 2⁹ = 8636724947 is a prime.

It is not a weakly prime, because it can be changed into another prime (8636725859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4318362729 + 4318362730.

It is an arithmetic number, because the mean of its divisors is an integer number (4318362730).

Almost surely, 2^8636725459 is an apocalyptic number.

8636725459 is a deficient number, since it is larger than the sum of its proper divisors (1).

8636725459 is an equidigital number, since it uses as much as digits as its factorization.

8636725459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The square root of 8636725459 is about 92933.9844136686. The cubic root of 8636725459 is about 2051.7118724065.

The spelling of 8636725459 in words is "eight billion, six hundred thirty-six million, seven hundred twenty-five thousand, four hundred fifty-nine".