23689145889 has 12 divisors (see below), whose sum is σ = 34236573072. Its totient is φ = 15784032600.

The previous prime is 23689145881. The next prime is 23689145897. The reversal of 23689145889 is 98854198632.

23689145889 is a `hidden beast` number, since 2 + 36 + 8 + 9 + 14 + 588 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (23689145881) and next prime (23689145897).

It is not a de Polignac number, because 23689145889 - 2³ = 23689145881 is a prime.

It is a super-2 number, since 2×23689145889² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23689145881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710407 + ... + 743004.

It is an arithmetic number, because the mean of its divisors is an integer number (2853047756).

Almost surely, 2^23689145889 is an apocalyptic number.

It is an amenable number.

23689145889 is a deficient number, since it is larger than the sum of its proper divisors (10547427183).

23689145889 is a wasteful number, since it uses less digits than its factorization.

23689145889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455228 (or 1455225 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 23689145889 in words is "twenty-three billion, six hundred eighty-nine million, one hundred forty-five thousand, eight hundred eighty-nine".