18723700852 has 12 divisors (see below), whose sum is σ = 32767439040. Its totient is φ = 9361575416.

The previous prime is 18723700763. The next prime is 18723700861. The reversal of 18723700852 is 25800732781.

It is a junction number, because it is equal to n+sod(n) for n = 18723700799 and 18723700808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210099 + ... + 285637.

It is an arithmetic number, because the mean of its divisors is an integer number (2730619920).

Almost surely, 2^18723700852 is an apocalyptic number.

It is an amenable number.

18723700852 is a deficient number, since it is larger than the sum of its proper divisors (14043738188).

18723700852 is a wasteful number, since it uses less digits than its factorization.

18723700852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137510 (or 137508 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 18723700852 in words is "eighteen billion, seven hundred twenty-three million, seven hundred thousand, eight hundred fifty-two".