22663194849 has 45 divisors (see below), whose sum is σ = 34749859683. Its totient is φ = 14719492368.

The previous prime is 22663194839. The next prime is 22663194899. The reversal of 22663194849 is 94849136622.

The square root of 22663194849 is 150543.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5349898449 + 17313296400 = 73143^2 + 131580^2 .

It is not a de Polignac number, because 22663194849 - 2¹¹ = 22663192801 is a prime.

It is a super-3 number, since 3×22663194849³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22663194795 and 22663194804.

It is not an unprimeable number, because it can be changed into a prime (22663194839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 58259947 + ... + 58260335.

Almost surely, 2^22663194849 is an apocalyptic number.

22663194849 is the 150543-rd square number.

22663194849 is the 75272-nd centered octagonal number.

It is an amenable number.

22663194849 is a deficient number, since it is larger than the sum of its proper divisors (12086664834).

22663194849 is an frugal number, since it uses more digits than its factorization.

22663194849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 435 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 22663194849 in words is "twenty-two billion, six hundred sixty-three million, one hundred ninety-four thousand, eight hundred forty-nine".