22609031769 has 21 divisors (see below), whose sum is σ = 33904128783. Its totient is φ = 15069981312.

The previous prime is 22609031719. The next prime is 22609031777. The reversal of 22609031769 is 96713090622.

It is a happy number.

The square root of 22609031769 is 150363.

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

22609031769 is a `hidden beast` number, since 2 + 2 + 609 + 0 + 31 + 7 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4091265369 + 18517766400 = 63963^2 + 136080^2 .

It is not a de Polignac number, because 22609031769 - 2¹¹ = 22609029721 is a prime.

It is a super-2 number, since 2×22609031769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22609031719) 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 20 ways as a sum of consecutive naturals, for example, 4057017 + ... + 4062585.

It is an arithmetic number, because the mean of its divisors is an integer number (1614482323).

Almost surely, 2^22609031769 is an apocalyptic number.

22609031769 is the 150363-rd square number.

22609031769 is the 75182-nd centered octagonal number.

It is an amenable number.

22609031769 is a deficient number, since it is larger than the sum of its proper divisors (11295097014).

22609031769 is an frugal number, since it uses more digits than its factorization.

22609031769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11156 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 22609031769 in words is "twenty-two billion, six hundred nine million, thirty-one thousand, seven hundred sixty-nine".