22532279287 has 16 divisors (see below), whose sum is σ = 25919695872. Its totient is φ = 19187388000.

The previous prime is 22532279269. The next prime is 22532279309. The reversal of 22532279287 is 78297223522.

It is a cyclic number.

It is not a de Polignac number, because 22532279287 - 2²³ = 22523890679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22532279287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532270287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681378 + ... + 713680.

It is an arithmetic number, because the mean of its divisors is an integer number (1619980992).

Almost surely, 2^22532279287 is an apocalyptic number.

22532279287 is a deficient number, since it is larger than the sum of its proper divisors (3387416585).

22532279287 is a wasteful number, since it uses less digits than its factorization.

22532279287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32958.

The product of its digits is 1693440, while the sum is 49.

The spelling of 22532279287 in words is "twenty-two billion, five hundred thirty-two million, two hundred seventy-nine thousand, two hundred eighty-seven".