22186872243761 has 2 divisors, whose sum is σ = 22186872243762. Its totient is φ = 22186872243760.

The previous prime is 22186872243733. The next prime is 22186872243797. The reversal of 22186872243761 is 16734227868122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22111211489536 + 75660754225 = 4702256^2 + 275065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22186872243761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22186872243761.

It is not a weakly prime, because it can be changed into another prime (22186872243061) by changing a digit.

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 as a sum of consecutive naturals, namely, 11093436121880 + 11093436121881.

It is an arithmetic number, because the mean of its divisors is an integer number (11093436121881).

Almost surely, 2^{22186872243761} is an apocalyptic number.

It is an amenable number.

22186872243761 is a deficient number, since it is larger than the sum of its proper divisors (1).

22186872243761 is an equidigital number, since it uses as much as digits as its factorization.

22186872243761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21676032, while the sum is 59.

The spelling of 22186872243761 in words is "twenty-two trillion, one hundred eighty-six billion, eight hundred seventy-two million, two hundred forty-three thousand, seven hundred sixty-one".