27822381772 has 24 divisors (see below), whose sum is σ = 49395280032. Its totient is φ = 13709606400.

The previous prime is 27822381751. The next prime is 27822381773. The reversal of 27822381772 is 27718322872.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27822381773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717522 + ... + 755302.

It is an arithmetic number, because the mean of its divisors is an integer number (2058136668).

Almost surely, 2^27822381772 is an apocalyptic number.

It is an amenable number.

27822381772 is a deficient number, since it is larger than the sum of its proper divisors (21572898260).

27822381772 is a wasteful number, since it uses less digits than its factorization.

27822381772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40449 (or 40447 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 49.

The spelling of 27822381772 in words is "twenty-seven billion, eight hundred twenty-two million, three hundred eighty-one thousand, seven hundred seventy-two".