22585181473 has 2 divisors, whose sum is σ = 22585181474. Its totient is φ = 22585181472.

The previous prime is 22585181449. The next prime is 22585181477. The reversal of 22585181473 is 37418158522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21473092369 + 1112089104 = 146537^2 + 33348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22585181473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22585181477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11292590736 + 11292590737.

It is an arithmetic number, because the mean of its divisors is an integer number (11292590737).

Almost surely, 2^22585181473 is an apocalyptic number.

It is an amenable number.

22585181473 is a deficient number, since it is larger than the sum of its proper divisors (1).

22585181473 is an equidigital number, since it uses as much as digits as its factorization.

22585181473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537600, while the sum is 46.

The spelling of 22585181473 in words is "twenty-two billion, five hundred eighty-five million, one hundred eighty-one thousand, four hundred seventy-three".