8265636385 has 32 divisors (see below), whose sum is σ = 11022635520. Its totient is φ = 5918297088.

The previous prime is 8265636331. The next prime is 8265636389. The reversal of 8265636385 is 5836365628.

It is a cyclic number.

It is not a de Polignac number, because 8265636385 - 2²³ = 8257247777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8265636389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325996 + ... + 350434.

It is an arithmetic number, because the mean of its divisors is an integer number (344457360).

Almost surely, 2^8265636385 is an apocalyptic number.

8265636385 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8265636385 is a deficient number, since it is larger than the sum of its proper divisors (2756999135).

8265636385 is a wasteful number, since it uses less digits than its factorization.

8265636385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24657.

The product of its digits is 6220800, while the sum is 52.

The square root of 8265636385 is about 90915.5453429170. The cubic root of 8265636385 is about 2021.8957780856.

The spelling of 8265636385 in words is "eight billion, two hundred sixty-five million, six hundred thirty-six thousand, three hundred eighty-five".