22398659443 has 16 divisors (see below), whose sum is σ = 23400898560. Its totient is φ = 21412692000.

The previous prime is 22398659389. The next prime is 22398659449. The reversal of 22398659443 is 34495689322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22398659443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22398659449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1353646 + ... + 1370092.

It is an arithmetic number, because the mean of its divisors is an integer number (1462556160).

Almost surely, 2^22398659443 is an apocalyptic number.

22398659443 is a deficient number, since it is larger than the sum of its proper divisors (1002239117).

22398659443 is a wasteful number, since it uses less digits than its factorization.

22398659443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16938.

The product of its digits is 11197440, while the sum is 55.

The spelling of 22398659443 in words is "twenty-two billion, three hundred ninety-eight million, six hundred fifty-nine thousand, four hundred forty-three".