22618054449 has 9 divisors (see below), whose sum is σ = 32671174809. Its totient is φ = 15078402180.

The previous prime is 22618054439. The next prime is 22618054451. The reversal of 22618054449 is 94445081622.

It is a happy number.

The square root of 22618054449 is 150393.

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

22618054449 is a `hidden beast` number, since 2 + 2 + 61 + 8 + 0 + 544 + 49 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 22618054449 - 2¹⁹ = 22617530161 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22618054439) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 426114 + ... + 476244.

Almost surely, 2^22618054449 is an apocalyptic number.

22618054449 is the 150393-rd square number.

22618054449 is the 75197-th centered octagonal number.

It is an amenable number.

22618054449 is a deficient number, since it is larger than the sum of its proper divisors (10053120360).

22618054449 is an frugal number, since it uses more digits than its factorization.

22618054449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100268 (or 50134 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 22618054449 in words is "twenty-two billion, six hundred eighteen million, fifty-four thousand, four hundred forty-nine".