22447899242497 has 4 divisors (see below), whose sum is σ = 23423894861760. Its totient is φ = 21471903623236.

The previous prime is 22447899242471. The next prime is 22447899242539. The reversal of 22447899242497 is 79424299874422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22447899242497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22447899242897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487997809597 + ... + 487997809642.

It is an arithmetic number, because the mean of its divisors is an integer number (5855973715440).

Almost surely, 2^{22447899242497} is an apocalyptic number.

It is an amenable number.

22447899242497 is a deficient number, since it is larger than the sum of its proper divisors (975995619263).

22447899242497 is an equidigital number, since it uses as much as digits as its factorization.

22447899242497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975995619262.

The product of its digits is 1170505728, while the sum is 73.

The spelling of 22447899242497 in words is "twenty-two trillion, four hundred forty-seven billion, eight hundred ninety-nine million, two hundred forty-two thousand, four hundred ninety-seven".