22778252996 has 12 divisors (see below), whose sum is σ = 39868587948. Its totient is φ = 11387227872.

The previous prime is 22778252977. The next prime is 22778253013. The reversal of 22778252996 is 69925287722.

It can be written as a sum of positive squares in 2 ways, for example, as 4615300096 + 18162952900 = 67936^2 + 134770^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447491 + ... + 495786.

It is an arithmetic number, because the mean of its divisors is an integer number (3322382329).

Almost surely, 2^22778252996 is an apocalyptic number.

It is an amenable number.

22778252996 is a deficient number, since it is larger than the sum of its proper divisors (17090334952).

22778252996 is a wasteful number, since it uses less digits than its factorization.

22778252996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949318 (or 949316 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 59.

The spelling of 22778252996 in words is "twenty-two billion, seven hundred seventy-eight million, two hundred fifty-two thousand, nine hundred ninety-six".