8312373845 has 4 divisors (see below), whose sum is σ = 9974848620. Its totient is φ = 6649899072.

The previous prime is 8312373829. The next prime is 8312373863. The reversal of 8312373845 is 5483732138.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3604081156 + 4708292689 = 60034^2 + 68617^2 .

It is a cyclic number.

It is not a de Polignac number, because 8312373845 - 2⁴ = 8312373829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8312373796 and 8312373805.

It is a congruent number.

It is an unprimeable number.

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, 831237380 + ... + 831237389.

It is an arithmetic number, because the mean of its divisors is an integer number (2493712155).

Almost surely, 2^8312373845 is an apocalyptic number.

It is an amenable number.

8312373845 is a deficient number, since it is larger than the sum of its proper divisors (1662474775).

8312373845 is a wasteful number, since it uses less digits than its factorization.

8312373845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662474774.

The product of its digits is 483840, while the sum is 44.

The square root of 8312373845 is about 91172.2207966878. The cubic root of 8312373845 is about 2025.6995069532.

The spelling of 8312373845 in words is "eight billion, three hundred twelve million, three hundred seventy-three thousand, eight hundred forty-five".