8636840145 has 24 divisors (see below), whose sum is σ = 15150897216. Its totient is φ = 4550815008.

The previous prime is 8636840143. The next prime is 8636840159. The reversal of 8636840145 is 5410486368.

8636840145 is a `hidden beast` number, since 8 + 636 + 8 + 4 + 0 + 1 + 4 + 5 = 666.

8636840145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8636840145 - 2¹ = 8636840143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8636840145.

It is not an unprimeable number, because it can be changed into a prime (8636840141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1152469 + ... + 1159938.

It is an arithmetic number, because the mean of its divisors is an integer number (631287384).

Almost surely, 2^8636840145 is an apocalyptic number.

It is an amenable number.

8636840145 is a deficient number, since it is larger than the sum of its proper divisors (6514057071).

8636840145 is a wasteful number, since it uses less digits than its factorization.

8636840145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312501 (or 2312498 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 8636840145 is about 92934.6014410133. The cubic root of 8636840145 is about 2051.7209538416.

The spelling of 8636840145 in words is "eight billion, six hundred thirty-six million, eight hundred forty thousand, one hundred forty-five".