22643683912 has 8 divisors (see below), whose sum is σ = 42456907350. Its totient is φ = 11321841952.

The previous prime is 22643683897. The next prime is 22643683921. The reversal of 22643683912 is 21938634622.

It can be written as a sum of positive squares in only one way, i.e., 20630725956 + 2012957956 = 143634^2 + 44866^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22643683912² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415230237 + ... + 1415230252.

Almost surely, 2^22643683912 is an apocalyptic number.

It is an amenable number.

22643683912 is a deficient number, since it is larger than the sum of its proper divisors (19813223438).

22643683912 is a wasteful number, since it uses less digits than its factorization.

22643683912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830460495 (or 2830460491 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The spelling of 22643683912 in words is "twenty-two billion, six hundred forty-three million, six hundred eighty-three thousand, nine hundred twelve".