18105628652 has 12 divisors (see below), whose sum is σ = 31700178720. Its totient is φ = 9048434736.

The previous prime is 18105628603. The next prime is 18105628699. The reversal of 18105628652 is 25682650181.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085588 + ... + 1102139.

It is an arithmetic number, because the mean of its divisors is an integer number (2641681560).

Almost surely, 2^18105628652 is an apocalyptic number.

It is an amenable number.

18105628652 is a deficient number, since it is larger than the sum of its proper divisors (13594550068).

18105628652 is a wasteful number, since it uses less digits than its factorization.

18105628652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189800 (or 2189798 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 18105628652 in words is "eighteen billion, one hundred five million, six hundred twenty-eight thousand, six hundred fifty-two".