8499263649 has 4 divisors (see below), whose sum is σ = 11332351536. Its totient is φ = 5666175764.

The previous prime is 8499263603. The next prime is 8499263681. The reversal of 8499263649 is 9463629948.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8499263649 - 2⁹ = 8499263137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8499263592 and 8499263601.

It is not an unprimeable number, because it can be changed into a prime (8499263449) 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, 1416543939 + ... + 1416543944.

It is an arithmetic number, because the mean of its divisors is an integer number (2833087884).

Almost surely, 2^8499263649 is an apocalyptic number.

It is an amenable number.

8499263649 is a deficient number, since it is larger than the sum of its proper divisors (2833087887).

8499263649 is a wasteful number, since it uses less digits than its factorization.

8499263649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833087886.

The product of its digits is 20155392, while the sum is 60.

The square root of 8499263649 is about 92191.4510624494. The cubic root of 8499263649 is about 2040.7686172801.

The spelling of 8499263649 in words is "eight billion, four hundred ninety-nine million, two hundred sixty-three thousand, six hundred forty-nine".