18600500212 has 24 divisors (see below), whose sum is σ = 37263139200. Its totient is φ = 7958327520.

The previous prime is 18600500201. The next prime is 18600500221. The reversal of 18600500212 is 21200500681.

It is a super-2 number, since 2×18600500212² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537739 + ... + 571282.

It is an arithmetic number, because the mean of its divisors is an integer number (1552630800).

Almost surely, 2^18600500212 is an apocalyptic number.

It is an amenable number.

18600500212 is an abundant number, since it is smaller than the sum of its proper divisors (18662638988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18600500212 is a wasteful number, since it uses less digits than its factorization.

18600500212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109631 (or 1109629 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 18600500212 in words is "eighteen billion, six hundred million, five hundred thousand, two hundred twelve".