23563681673 has 16 divisors (see below), whose sum is σ = 27064926720. Its totient is φ = 20096315136.

The previous prime is 23563681627. The next prime is 23563681681. The reversal of 23563681673 is 37618636532.

It is a cyclic number.

It is not a de Polignac number, because 23563681673 - 2¹⁰ = 23563680649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23563681873) 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, 2698208 + ... + 2706926.

It is an arithmetic number, because the mean of its divisors is an integer number (1691557920).

Almost surely, 2^23563681673 is an apocalyptic number.

It is an amenable number.

23563681673 is a deficient number, since it is larger than the sum of its proper divisors (3501245047).

23563681673 is a wasteful number, since it uses less digits than its factorization.

23563681673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10616.

The product of its digits is 3265920, while the sum is 50.

The spelling of 23563681673 in words is "twenty-three billion, five hundred sixty-three million, six hundred eighty-one thousand, six hundred seventy-three".