8505364319 has 4 divisors (see below), whose sum is σ = 8522274096. Its totient is φ = 8488454544.

The previous prime is 8505364313. The next prime is 8505364331. The reversal of 8505364319 is 9134635058.

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

It is a cyclic number.

It is not a de Polignac number, because 8505364319 - 2²⁴ = 8488587103 is a prime.

It is a super-2 number, since 2×8505364319² (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 8505364319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505364313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8454134 + ... + 8455139.

It is an arithmetic number, because the mean of its divisors is an integer number (2130568524).

Almost surely, 2^8505364319 is an apocalyptic number.

8505364319 is a deficient number, since it is larger than the sum of its proper divisors (16909777).

8505364319 is a wasteful number, since it uses less digits than its factorization.

8505364319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16909776.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 8505364319 is about 92224.5320888103. The cubic root of 8505364319 is about 2041.2567802844.

The spelling of 8505364319 in words is "eight billion, five hundred five million, three hundred sixty-four thousand, three hundred nineteen".