22772340872 has 12 divisors (see below), whose sum is σ = 42698939445. Its totient is φ = 11385957024.

The previous prime is 22772340859. The next prime is 22772340887. The reversal of 22772340872 is 27804327722.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 18217980676 + 4554360196 = 134974^2 + 67486^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106706.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 400148 + ... + 453500.

Almost surely, 2^22772340872 is an apocalyptic number.

It is an amenable number.

22772340872 is a deficient number, since it is larger than the sum of its proper divisors (19926598573).

22772340872 is an frugal number, since it uses more digits than its factorization.

22772340872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106712 (or 53355 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 44.

The spelling of 22772340872 in words is "twenty-two billion, seven hundred seventy-two million, three hundred forty thousand, eight hundred seventy-two".