23969569889 has 4 divisors (see below), whose sum is σ = 24041985840. Its totient is φ = 23897153940.

The previous prime is 23969569843. The next prime is 23969569891. The reversal of 23969569889 is 98896596932.

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 not a de Polignac number, because 23969569889 - 2¹⁶ = 23969504353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23969563889) 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, 36207479 + ... + 36208140.

It is an arithmetic number, because the mean of its divisors is an integer number (6010496460).

Almost surely, 2^23969569889 is an apocalyptic number.

It is an amenable number.

23969569889 is a deficient number, since it is larger than the sum of its proper divisors (72415951).

23969569889 is an equidigital number, since it uses as much as digits as its factorization.

23969569889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72415950.

The product of its digits is 453496320, while the sum is 74.

The spelling of 23969569889 in words is "twenty-three billion, nine hundred sixty-nine million, five hundred sixty-nine thousand, eight hundred eighty-nine".