22782809992 has 16 divisors (see below), whose sum is σ = 42743888460. Its totient is φ = 11384439744.

The previous prime is 22782809957. The next prime is 22782809993. The reversal of 22782809992 is 29990828722.

It can be written as a sum of positive squares in 2 ways, for example, as 17839876356 + 4942933636 = 133566^2 + 70306^2 .

It is a super-2 number, since 2×22782809992² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22782809993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856743 + ... + 882934.

Almost surely, 2^22782809992 is an apocalyptic number.

It is an amenable number.

22782809992 is a deficient number, since it is larger than the sum of its proper divisors (19961078468).

22782809992 is a wasteful number, since it uses less digits than its factorization.

22782809992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741320 (or 1741316 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 22782809992 in words is "twenty-two billion, seven hundred eighty-two million, eight hundred nine thousand, nine hundred ninety-two".