2722421723 has 6 divisors (see below), whose sum is σ = 3166898796. Its totient is φ = 2333504292.

The previous prime is 2722421693. The next prime is 2722421731. The reversal of 2722421723 is 3271242272.

It is not a de Polignac number, because 2722421723 - 2¹⁰ = 2722420699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2722421723.

It is not an unprimeable number, because it can be changed into a prime (2722421753) 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 5 ways as a sum of consecutive naturals, for example, 27779765 + ... + 27779862.

It is an arithmetic number, because the mean of its divisors is an integer number (527816466).

Almost surely, 2^2722421723 is an apocalyptic number.

2722421723 is a deficient number, since it is larger than the sum of its proper divisors (444477073).

2722421723 is an equidigital number, since it uses as much as digits as its factorization.

2722421723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55559641 (or 55559634 counting only the distinct ones).

The product of its digits is 18816, while the sum is 32.

The square root of 2722421723 is about 52176.8312855428. The cubic root of 2722421723 is about 1396.3205632898.

Adding to 2722421723 its reverse (3271242272), we get a palindrome (5993663995).

The spelling of 2722421723 in words is "two billion, seven hundred twenty-two million, four hundred twenty-one thousand, seven hundred twenty-three".