22026418569 has 27 divisors (see below), whose sum is σ = 32385994407. Its totient is φ = 14425743600.

The previous prime is 22026418549. The next prime is 22026418573. The reversal of 22026418569 is 96581462022.

The square root of 22026418569 is 148413.

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

22026418569 is a `hidden beast` number, since 2 + 20 + 2 + 64 + 1 + 8 + 569 = 666.

It can be written as a sum of positive squares in only one way, i.e., 716258169 + 21310160400 = 26763^2 + 145980^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22026418569 is a prime.

It is a super-2 number, since 2×22026418569² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22026418549) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 27159174 + ... + 27159984.

Almost surely, 2^22026418569 is an apocalyptic number.

22026418569 is the 148413-rd square number.

22026418569 is the 74207-th centered octagonal number.

It is an amenable number.

22026418569 is a deficient number, since it is larger than the sum of its proper divisors (10359575838).

22026418569 is an frugal number, since it uses more digits than its factorization.

22026418569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 22026418569 in words is "twenty-two billion, twenty-six million, four hundred eighteen thousand, five hundred sixty-nine".