22244687873 has 6 divisors (see below), whose sum is σ = 22562411202. Its totient is φ = 21931377440.

The previous prime is 22244687869. The next prime is 22244687891. The reversal of 22244687873 is 37878644222.

It can be written as a sum of positive squares in only one way, i.e., 20325634624 + 1919053249 = 142568^2 + 43807^2 .

It is not a de Polignac number, because 22244687873 - 2² = 22244687869 is a prime.

It is a super-2 number, since 2×22244687873² (a number of 21 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 (22244687173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2201336 + ... + 2211417.

It is an arithmetic number, because the mean of its divisors is an integer number (3760401867).

Almost surely, 2^22244687873 is an apocalyptic number.

It is an amenable number.

22244687873 is a deficient number, since it is larger than the sum of its proper divisors (317723329).

22244687873 is an frugal number, since it uses more digits than its factorization.

22244687873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412895 (or 4412824 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 53.

The spelling of 22244687873 in words is "twenty-two billion, two hundred forty-four million, six hundred eighty-seven thousand, eight hundred seventy-three".