8364641533 has 4 divisors (see below), whose sum is σ = 8447459868. Its totient is φ = 8281823200.

The previous prime is 8364641437. The next prime is 8364641543. The reversal of 8364641533 is 3351464638.

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 7767425689 + 597215844 = 88133^2 + 24438^2 .

It is a cyclic number.

It is not a de Polignac number, because 8364641533 - 2¹³ = 8364633341 is a prime.

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 8364641533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8364641543) 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 3 ways as a sum of consecutive naturals, for example, 41409016 + ... + 41409217.

It is an arithmetic number, because the mean of its divisors is an integer number (2111864967).

Almost surely, 2^8364641533 is an apocalyptic number.

It is an amenable number.

8364641533 is a deficient number, since it is larger than the sum of its proper divisors (82818335).

8364641533 is a wasteful number, since it uses less digits than its factorization.

8364641533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82818334.

The product of its digits is 622080, while the sum is 43.

The square root of 8364641533 is about 91458.4142274509. The cubic root of 8364641533 is about 2029.9364627804.

The spelling of 8364641533 in words is "eight billion, three hundred sixty-four million, six hundred forty-one thousand, five hundred thirty-three".