8849836945 has 4 divisors (see below), whose sum is σ = 10619804340. Its totient is φ = 7079869552.

The previous prime is 8849836943. The next prime is 8849836981. The reversal of 8849836945 is 5496389488.

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 6900791041 + 1949045904 = 83071^2 + 44148^2 .

It is a cyclic number.

It is not a de Polignac number, because 8849836945 - 2¹ = 8849836943 is a prime.

It is a super-2 number, since 2×8849836945² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8849836943) 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, 884983690 + ... + 884983699.

It is an arithmetic number, because the mean of its divisors is an integer number (2654951085).

Almost surely, 2^8849836945 is an apocalyptic number.

It is an amenable number.

8849836945 is a deficient number, since it is larger than the sum of its proper divisors (1769967395).

8849836945 is a wasteful number, since it uses less digits than its factorization.

8849836945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769967394.

The product of its digits is 59719680, while the sum is 64.

The square root of 8849836945 is about 94073.5719795948. The cubic root of 8849836945 is about 2068.4502971611.

The spelling of 8849836945 in words is "eight billion, eight hundred forty-nine million, eight hundred thirty-six thousand, nine hundred forty-five".