22544140236489 has 15 divisors (see below), whose sum is σ = 33677112830493. Its totient is φ = 15029398335924.

The previous prime is 22544140236469. The next prime is 22544140236517. The reversal of 22544140236489 is 98463204144522.

The square root of 22544140236489 is 4748067.

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

22544140236489 is a `hidden beast` number, since 2 + 2 + 5 + 441 + 40 + 23 + 64 + 89 = 666.

It is not a de Polignac number, because 22544140236489 - 2²⁵ = 22544106682057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22544140236469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 42468822 + ... + 42996384.

Almost surely, 2^{22544140236489} is an apocalyptic number.

22544140236489 is the 4748067-th square number.

22544140236489 is the 2374034-th centered octagonal number.

It is an amenable number.

22544140236489 is a deficient number, since it is larger than the sum of its proper divisors (11132972594004).

22544140236489 is an frugal number, since it uses more digits than its factorization.

22544140236489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055138 (or 527566 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 22544140236489 in words is "twenty-two trillion, five hundred forty-four billion, one hundred forty million, two hundred thirty-six thousand, four hundred eighty-nine".