22171836853 has 4 divisors (see below), whose sum is σ = 22341087648. Its totient is φ = 22002586060.

The previous prime is 22171836803. The next prime is 22171836899. The reversal of 22171836853 is 35863817122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22171836853 - 2²¹ = 22169739701 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 (22171836803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84625201 + ... + 84625462.

It is an arithmetic number, because the mean of its divisors is an integer number (5585271912).

Almost surely, 2^22171836853 is an apocalyptic number.

It is an amenable number.

22171836853 is a deficient number, since it is larger than the sum of its proper divisors (169250795).

22171836853 is a wasteful number, since it uses less digits than its factorization.

22171836853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169250794.

The product of its digits is 483840, while the sum is 46.

The spelling of 22171836853 in words is "twenty-two billion, one hundred seventy-one million, eight hundred thirty-six thousand, eight hundred fifty-three".