18678101589 has 12 divisors (see below), whose sum is σ = 30833691616. Its totient is φ = 10673200872.

The previous prime is 18678101581. The next prime is 18678101621. The reversal of 18678101589 is 98510187681.

It is a happy number.

It is not a de Polignac number, because 18678101589 - 2³ = 18678101581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18678101581) 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 11 ways as a sum of consecutive naturals, for example, 148238839 + ... + 148238964.

Almost surely, 2^18678101589 is an apocalyptic number.

It is an amenable number.

18678101589 is a deficient number, since it is larger than the sum of its proper divisors (12155590027).

18678101589 is a wasteful number, since it uses less digits than its factorization.

18678101589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296477816 (or 296477813 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 54.

The spelling of 18678101589 in words is "eighteen billion, six hundred seventy-eight million, one hundred one thousand, five hundred eighty-nine".