18603361852 has 24 divisors (see below), whose sum is σ = 34419030800. Its totient is φ = 8773629696.

The previous prime is 18603361807. The next prime is 18603361859. The reversal of 18603361852 is 25816330681.

It is a junction number, because it is equal to n+sod(n) for n = 18603361799 and 18603361808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18603361859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517053 + ... + 551860.

Almost surely, 2^18603361852 is an apocalyptic number.

It is an amenable number.

18603361852 is a deficient number, since it is larger than the sum of its proper divisors (15815668948).

18603361852 is a wasteful number, since it uses less digits than its factorization.

18603361852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069165 (or 1069163 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 18603361852 in words is "eighteen billion, six hundred three million, three hundred sixty-one thousand, eight hundred fifty-two".