22727272727 has 4 divisors (see below), whose sum is σ = 22727579616. Its totient is φ = 22726965840.

The previous prime is 22727272721. The next prime is 22727272741. The reversal of 22727272727 is 72727272722.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22727272727 - 2⁶ = 22727272663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22727272721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33827 + ... + 215867.

It is an arithmetic number, because the mean of its divisors is an integer number (5681894904).

Almost surely, 2^22727272727 is an apocalyptic number.

22727272727 is a deficient number, since it is larger than the sum of its proper divisors (306889).

22727272727 is a wasteful number, since it uses less digits than its factorization.

22727272727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306888.

The product of its digits is 1075648, while the sum is 47.

The spelling of 22727272727 in words is "twenty-two billion, seven hundred twenty-seven million, two hundred seventy-two thousand, seven hundred twenty-seven".