22727428427 has 12 divisors (see below), whose sum is σ = 24990898968. Its totient is φ = 20653432800.

The previous prime is 22727428397. The next prime is 22727428433. The reversal of 22727428427 is 72482472722.

It is a happy number.

It is not a de Polignac number, because 22727428427 - 2¹⁶ = 22727362891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22727428457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296063 + ... + 364839.

It is an arithmetic number, because the mean of its divisors is an integer number (2082574914).

Almost surely, 2^22727428427 is an apocalyptic number.

22727428427 is a deficient number, since it is larger than the sum of its proper divisors (2263470541).

22727428427 is a wasteful number, since it uses less digits than its factorization.

22727428427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71530 (or 71519 counting only the distinct ones).

The product of its digits is 1404928, while the sum is 47.

It can be divided in two parts, 22727 and 428427, that added together give a palindrome (451154).

The spelling of 22727428427 in words is "twenty-two billion, seven hundred twenty-seven million, four hundred twenty-eight thousand, four hundred twenty-seven".