8372746565 has 4 divisors (see below), whose sum is σ = 10047295884. Its totient is φ = 6698197248.

The previous prime is 8372746541. The next prime is 8372746573. The reversal of 8372746565 is 5656472738.

It is a happy number.

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 2341204996 + 6031541569 = 48386^2 + 77663^2 .

It is a cyclic number.

It is not a de Polignac number, because 8372746565 - 2¹⁰ = 8372745541 is a prime.

It is a Duffinian number.

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, 837274652 + ... + 837274661.

It is an arithmetic number, because the mean of its divisors is an integer number (2511823971).

Almost surely, 2^8372746565 is an apocalyptic number.

It is an amenable number.

8372746565 is a deficient number, since it is larger than the sum of its proper divisors (1674549319).

8372746565 is a wasteful number, since it uses less digits than its factorization.

8372746565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674549318.

The product of its digits is 8467200, while the sum is 53.

The square root of 8372746565 is about 91502.7134297120. The cubic root of 8372746565 is about 2030.5918958818.

The spelling of 8372746565 in words is "eight billion, three hundred seventy-two million, seven hundred forty-six thousand, five hundred sixty-five".