18701836852 has 12 divisors (see below), whose sum is σ = 32735295936. Its totient is φ = 9348895160.

The previous prime is 18701836847. The next prime is 18701836861. The reversal of 18701836852 is 25863810781.

It is a junction number, because it is equal to n+sod(n) for n = 18701836796 and 18701836805.

It is a congruent number.

It is an unprimeable number.

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, 484924 + ... + 522067.

It is an arithmetic number, because the mean of its divisors is an integer number (2727941328).

Almost surely, 2^18701836852 is an apocalyptic number.

It is an amenable number.

18701836852 is a deficient number, since it is larger than the sum of its proper divisors (14033459084).

18701836852 is a wasteful number, since it uses less digits than its factorization.

18701836852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011638 (or 1011636 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 18701836852 in words is "eighteen billion, seven hundred one million, eight hundred thirty-six thousand, eight hundred fifty-two".