22782566726228 has 6 divisors (see below), whose sum is σ = 39869491770906. Its totient is φ = 11391283363112.

The previous prime is 22782566726221. The next prime is 22782566726237. The reversal of 22782566726228 is 82262766528722.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21484967795344 + 1297598930884 = 4635188^2 + 1139122^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22782566726221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2847820840775 + ... + 2847820840782.

It is an arithmetic number, because the mean of its divisors is an integer number (6644915295151).

Almost surely, 2^{22782566726228} is an apocalyptic number.

It is an amenable number.

22782566726228 is a deficient number, since it is larger than the sum of its proper divisors (17086925044678).

22782566726228 is a wasteful number, since it uses less digits than its factorization.

22782566726228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695641681561 (or 5695641681559 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 65.

The spelling of 22782566726228 in words is "twenty-two trillion, seven hundred eighty-two billion, five hundred sixty-six million, seven hundred twenty-six thousand, two hundred twenty-eight".