22856636485 has 4 divisors (see below), whose sum is σ = 27427963788. Its totient is φ = 18285309184.

The previous prime is 22856636483. The next prime is 22856636489. The reversal of 22856636485 is 58463665822.

It is a happy number.

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 14973682689 + 7882953796 = 122367^2 + 88786^2 .

It is a cyclic number.

It is not a de Polignac number, because 22856636485 - 2¹ = 22856636483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22856636483) 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, 2285663644 + ... + 2285663653.

It is an arithmetic number, because the mean of its divisors is an integer number (6856990947).

Almost surely, 2^22856636485 is an apocalyptic number.

It is an amenable number.

22856636485 is a deficient number, since it is larger than the sum of its proper divisors (4571327303).

22856636485 is an equidigital number, since it uses as much as digits as its factorization.

22856636485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571327302.

The product of its digits is 16588800, while the sum is 55.

The spelling of 22856636485 in words is "twenty-two billion, eight hundred fifty-six million, six hundred thirty-six thousand, four hundred eighty-five".