8363418491 has 4 divisors (see below), whose sum is σ = 8364041400. Its totient is φ = 8362795584.

The previous prime is 8363418487. The next prime is 8363418509. The reversal of 8363418491 is 1948143638.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8363418491 - 2² = 8363418487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8363418451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290861 + ... + 318318.

It is an arithmetic number, because the mean of its divisors is an integer number (2091010350).

Almost surely, 2^8363418491 is an apocalyptic number.

8363418491 is a deficient number, since it is larger than the sum of its proper divisors (622909).

8363418491 is a wasteful number, since it uses less digits than its factorization.

8363418491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622908.

The product of its digits is 497664, while the sum is 47.

The square root of 8363418491 is about 91451.7276545391. The cubic root of 8363418491 is about 2029.8375217576.

The spelling of 8363418491 in words is "eight billion, three hundred sixty-three million, four hundred eighteen thousand, four hundred ninety-one".