18867270212 has 24 divisors (see below), whose sum is σ = 37966049856. Its totient is φ = 8036363808.

The previous prime is 18867270203. The next prime is 18867270221. The reversal of 18867270212 is 21207276881.

It is an interprime number because it is at equal distance from previous prime (18867270203) and next prime (18867270221).

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, 2062403 + ... + 2071530.

It is an arithmetic number, because the mean of its divisors is an integer number (1581918744).

Almost surely, 2^18867270212 is an apocalyptic number.

It is an amenable number.

18867270212 is an abundant number, since it is smaller than the sum of its proper divisors (19098779644).

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

18867270212 is a wasteful number, since it uses less digits than its factorization.

18867270212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134107 (or 4134105 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 18867270212 in words is "eighteen billion, eight hundred sixty-seven million, two hundred seventy thousand, two hundred twelve".