8536855645 has 4 divisors (see below), whose sum is σ = 10244226780. Its totient is φ = 6829484512.

The previous prime is 8536855597. The next prime is 8536855681. The reversal of 8536855645 is 5465586358.

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 5939322489 + 2597533156 = 77067^2 + 50966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8536855645 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 853685560 + ... + 853685569.

It is an arithmetic number, because the mean of its divisors is an integer number (2561056695).

Almost surely, 2^8536855645 is an apocalyptic number.

It is an amenable number.

8536855645 is a deficient number, since it is larger than the sum of its proper divisors (1707371135).

8536855645 is a wasteful number, since it uses less digits than its factorization.

8536855645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707371134.

The product of its digits is 17280000, while the sum is 55.

The square root of 8536855645 is about 92395.1061745155. The cubic root of 8536855645 is about 2043.7729456909.

The spelling of 8536855645 in words is "eight billion, five hundred thirty-six million, eight hundred fifty-five thousand, six hundred forty-five".