22323685491 has 12 divisors (see below), whose sum is σ = 32246621680. Its totient is φ = 14881857840.

The previous prime is 22323685481. The next prime is 22323685519. The reversal of 22323685491 is 19458632322.

22323685491 is a `hidden beast` number, since 2 + 23 + 23 + 68 + 549 + 1 = 666.

It is not a de Polignac number, because 22323685491 - 2⁵ = 22323685459 is a prime.

It is a super-3 number, since 3×22323685491³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22323685411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390690 + ... + 444168.

Almost surely, 2^22323685491 is an apocalyptic number.

22323685491 is a deficient number, since it is larger than the sum of its proper divisors (9922936189).

22323685491 is a wasteful number, since it uses less digits than its factorization.

22323685491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99866 (or 99863 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 22323685491 in words is "twenty-two billion, three hundred twenty-three million, six hundred eighty-five thousand, four hundred ninety-one".