8445422672169 has 32 divisors (see below), whose sum is σ = 12888673263360. Its totient is φ = 4818661892352.

The previous prime is 8445422672149. The next prime is 8445422672191. The reversal of 8445422672169 is 9612762245448.

It is not a de Polignac number, because 8445422672169 - 2¹² = 8445422668073 is a prime.

It is a super-2 number, since 2×8445422672169² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8445422672119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77685519 + ... + 77794155.

It is an arithmetic number, because the mean of its divisors is an integer number (402771039480).

Almost surely, 2^{8445422672169} is an apocalyptic number.

It is an amenable number.

8445422672169 is a deficient number, since it is larger than the sum of its proper divisors (4443250591191).

8445422672169 is a wasteful number, since it uses less digits than its factorization.

8445422672169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114209.

The product of its digits is 46448640, while the sum is 60.

The spelling of 8445422672169 in words is "eight trillion, four hundred forty-five billion, four hundred twenty-two million, six hundred seventy-two thousand, one hundred sixty-nine".