1866868112 has 40 divisors (see below), whose sum is σ = 3738070272. Its totient is φ = 902275200.

The previous prime is 1866868109. The next prime is 1866868139. The reversal of 1866868112 is 2118686681.

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, 584183 + ... + 587369.

Almost surely, 2^1866868112 is an apocalyptic number.

It is an amenable number.

1866868112 is an abundant number, since it is smaller than the sum of its proper divisors (1871202160).

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

1866868112 is a wasteful number, since it uses less digits than its factorization.

1866868112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407 (or 4401 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 1866868112 is about 43207.2692032255. The cubic root of 1866868112 is about 1231.3207906527.

The spelling of 1866868112 in words is "one billion, eight hundred sixty-six million, eight hundred sixty-eight thousand, one hundred twelve".