23573981189 has 4 divisors (see below), whose sum is σ = 25717070400. Its totient is φ = 21430891980.

The previous prime is 23573981159. The next prime is 23573981227. The reversal of 23573981189 is 98118937532.

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 23573981189 - 2⁸ = 23573980933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23573981159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071544589 + ... + 1071544610.

It is an arithmetic number, because the mean of its divisors is an integer number (6429267600).

Almost surely, 2^23573981189 is an apocalyptic number.

It is an amenable number.

23573981189 is a deficient number, since it is larger than the sum of its proper divisors (2143089211).

23573981189 is a wasteful number, since it uses less digits than its factorization.

23573981189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143089210.

The product of its digits is 3265920, while the sum is 56.

The spelling of 23573981189 in words is "twenty-three billion, five hundred seventy-three million, nine hundred eighty-one thousand, one hundred eighty-nine".