8045321761 has 16 divisors (see below), whose sum is σ = 8252513280. Its totient is φ = 7841070160.

The previous prime is 8045321759. The next prime is 8045321783. The reversal of 8045321761 is 1671235408.

It is a cyclic number.

It is not a de Polignac number, because 8045321761 - 2¹ = 8045321759 is a prime.

It is a super-2 number, since 2×8045321761² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8045321761.

It is not an unprimeable number, because it can be changed into a prime (8045321701) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5005620 + ... + 5007226.

It is an arithmetic number, because the mean of its divisors is an integer number (515782080).

Almost surely, 2^8045321761 is an apocalyptic number.

It is an amenable number.

8045321761 is a deficient number, since it is larger than the sum of its proper divisors (207191519).

8045321761 is a wasteful number, since it uses less digits than its factorization.

8045321761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 8045321761 is about 89695.7176291042. The cubic root of 8045321761 is about 2003.7697036198.

The spelling of 8045321761 in words is "eight billion, forty-five million, three hundred twenty-one thousand, seven hundred sixty-one".