8363668409 has 4 divisors (see below), whose sum is σ = 8363857920. Its totient is φ = 8363478900.

The previous prime is 8363668399. The next prime is 8363668421. The reversal of 8363668409 is 9048663638.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8363668409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8363668009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10184 + ... + 129734.

It is an arithmetic number, because the mean of its divisors is an integer number (2090964480).

Almost surely, 2^8363668409 is an apocalyptic number.

It is an amenable number.

8363668409 is a deficient number, since it is larger than the sum of its proper divisors (189511).

8363668409 is a wasteful number, since it uses less digits than its factorization.

8363668409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189510.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The square root of 8363668409 is about 91453.0940373260. The cubic root of 8363668409 is about 2029.8577402796.

The spelling of 8363668409 in words is "eight billion, three hundred sixty-three million, six hundred sixty-eight thousand, four hundred nine".