22775905281 has 16 divisors (see below), whose sum is σ = 30457347200. Its totient is φ = 15139267200.

The previous prime is 22775905279. The next prime is 22775905297. The reversal of 22775905281 is 18250957722.

It is not a de Polignac number, because 22775905281 - 2¹ = 22775905279 is a prime.

It is a super-2 number, since 2×22775905281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22775905281.

It is not an unprimeable number, because it can be changed into a prime (22775905241) 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, 1476195 + ... + 1491543.

It is an arithmetic number, because the mean of its divisors is an integer number (1903584200).

Almost surely, 2^22775905281 is an apocalyptic number.

It is an amenable number.

22775905281 is a deficient number, since it is larger than the sum of its proper divisors (7681441919).

22775905281 is a wasteful number, since it uses less digits than its factorization.

22775905281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16776.

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 22775905281 in words is "twenty-two billion, seven hundred seventy-five million, nine hundred five thousand, two hundred eighty-one".