23759989689 has 4 divisors (see below), whose sum is σ = 31679986256. Its totient is φ = 15839993124.

The previous prime is 23759989679. The next prime is 23759989699. The reversal of 23759989689 is 98698995732.

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 an interprime number because it is at equal distance from previous prime (23759989679) and next prime (23759989699).

It is a de Polignac number, because none of the positive numbers 2^k-23759989689 is a prime.

It is a super-2 number, since 2×23759989689² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23759989689.

It is not an unprimeable number, because it can be changed into a prime (23759989679) 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, 3959998279 + ... + 3959998284.

It is an arithmetic number, because the mean of its divisors is an integer number (7919996564).

Almost surely, 2^23759989689 is an apocalyptic number.

It is an amenable number.

23759989689 is a deficient number, since it is larger than the sum of its proper divisors (7919996567).

23759989689 is an equidigital number, since it uses as much as digits as its factorization.

23759989689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919996566.

The product of its digits is 529079040, while the sum is 75.

The spelling of 23759989689 in words is "twenty-three billion, seven hundred fifty-nine million, nine hundred eighty-nine thousand, six hundred eighty-nine".