22409269548649 has 3 divisors (see below), whose sum is σ = 22409274282493. Its totient is φ = 22409264814806.

The previous prime is 22409269548607. The next prime is 22409269548689. The reversal of 22409269548649 is 94684596290422.

It is a happy number.

The square root of 22409269548649 is 4733843.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-22409269548649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22409269548689) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2366922 + ... + 7100764.

Almost surely, 2^{22409269548649} is an apocalyptic number.

22409269548649 is the 4733843-rd square number.

22409269548649 is the 2366922-nd centered octagonal number.

It is an amenable number.

22409269548649 is a deficient number, since it is larger than the sum of its proper divisors (4733844).

22409269548649 is an frugal number, since it uses more digits than its factorization.

22409269548649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9467686 (or 4733843 counting only the distinct ones).

The product of its (nonzero) digits is 537477120, while the sum is 70.

The spelling of 22409269548649 in words is "twenty-two trillion, four hundred nine billion, two hundred sixty-nine million, five hundred forty-eight thousand, six hundred forty-nine".