8365791243 has 4 divisors (see below), whose sum is σ = 11154388328. Its totient is φ = 5577194160.

The previous prime is 8365791229. The next prime is 8365791253. The reversal of 8365791243 is 3421975638.

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

It is not a de Polignac number, because 8365791243 - 2⁹ = 8365790731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8365791192 and 8365791201.

It is not an unprimeable number, because it can be changed into a prime (8365791253) 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 3 ways as a sum of consecutive naturals, for example, 1394298538 + ... + 1394298543.

It is an arithmetic number, because the mean of its divisors is an integer number (2788597082).

Almost surely, 2^8365791243 is an apocalyptic number.

8365791243 is a deficient number, since it is larger than the sum of its proper divisors (2788597085).

8365791243 is a wasteful number, since it uses less digits than its factorization.

8365791243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788597084.

The product of its digits is 1088640, while the sum is 48.

The square root of 8365791243 is about 91464.6994364493. The cubic root of 8365791243 is about 2030.0294626347.

The spelling of 8365791243 in words is "eight billion, three hundred sixty-five million, seven hundred ninety-one thousand, two hundred forty-three".