22412889643 has 4 divisors (see below), whose sum is σ = 22493802880. Its totient is φ = 22331976408.

The previous prime is 22412889637. The next prime is 22412889689. The reversal of 22412889643 is 34698821422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22412889643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22412889623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40456203 + ... + 40456756.

It is an arithmetic number, because the mean of its divisors is an integer number (5623450720).

Almost surely, 2^22412889643 is an apocalyptic number.

22412889643 is a deficient number, since it is larger than the sum of its proper divisors (80913237).

22412889643 is an equidigital number, since it uses as much as digits as its factorization.

22412889643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80913236.

The product of its digits is 1327104, while the sum is 49.

The spelling of 22412889643 in words is "twenty-two billion, four hundred twelve million, eight hundred eighty-nine thousand, six hundred forty-three".