36123563845 has 4 divisors (see below), whose sum is σ = 43348276620. Its totient is φ = 28898851072.

The previous prime is 36123563837. The next prime is 36123563849. The reversal of 36123563845 is 54836532163.

It is a Cunningham number, because it is equal to 190062²+1.

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 13004665444 + 23118898401 = 114038^2 + 152049^2 .

It is a cyclic number.

It is not a de Polignac number, because 36123563845 - 2³ = 36123563837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36123563795 and 36123563804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36123563849) 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, 3612356380 + ... + 3612356389.

It is an arithmetic number, because the mean of its divisors is an integer number (10837069155).

Almost surely, 2^36123563845 is an apocalyptic number.

It is an amenable number.

36123563845 is a deficient number, since it is larger than the sum of its proper divisors (7224712775).

36123563845 is an equidigital number, since it uses as much as digits as its factorization.

36123563845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224712774.

The product of its digits is 1555200, while the sum is 46.

The spelling of 36123563845 in words is "thirty-six billion, one hundred twenty-three million, five hundred sixty-three thousand, eight hundred forty-five".