8313189863 has 4 divisors (see below), whose sum is σ = 9068934408. Its totient is φ = 7557445320.

The previous prime is 8313189811. The next prime is 8313189917. The reversal of 8313189863 is 3689813138.

It is a happy number.

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 8313189863 - 2⁸ = 8313189607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8313189163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377872256 + ... + 377872277.

It is an arithmetic number, because the mean of its divisors is an integer number (2267233602).

Almost surely, 2^8313189863 is an apocalyptic number.

8313189863 is a deficient number, since it is larger than the sum of its proper divisors (755744545).

8313189863 is a wasteful number, since it uses less digits than its factorization.

8313189863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755744544.

The product of its digits is 746496, while the sum is 50.

The square root of 8313189863 is about 91176.6958328717. The cubic root of 8313189863 is about 2025.7657917956.

The spelling of 8313189863 in words is "eight billion, three hundred thirteen million, one hundred eighty-nine thousand, eight hundred sixty-three".