86622444422669 has 4 divisors (see below), whose sum is σ = 89609425264860. Its totient is φ = 83635463580480.

The previous prime is 86622444422639. The next prime is 86622444422707. The reversal of 86622444422669 is 96622444422668.

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 31954713122500 + 54667731300169 = 5652850^2 + 7393763^2 .

It is a cyclic number.

It is not a de Polignac number, because 86622444422669 - 2¹⁶ = 86622444357133 is a prime.

It is a super-2 number, since 2×86622444422669² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86622444422639) 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, 1493490421052 + ... + 1493490421109.

It is an arithmetic number, because the mean of its divisors is an integer number (22402356316215).

Almost surely, 2^{86622444422669} is an apocalyptic number.

It is an amenable number.

86622444422669 is a deficient number, since it is larger than the sum of its proper divisors (2986980842191).

86622444422669 is a wasteful number, since it uses less digits than its factorization.

86622444422669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986980842190.

The product of its digits is 382205952, while the sum is 65.

Subtracting 86622444422669 from its reverse (96622444422668), we obtain a palindrome (9999999999999).

The spelling of 86622444422669 in words is "eighty-six trillion, six hundred twenty-two billion, four hundred forty-four million, four hundred twenty-two thousand, six hundred sixty-nine".