868574188 has 12 divisors (see below), whose sum is σ = 1529331160. Its totient is φ = 431622432.

The previous prime is 868574171. The next prime is 868574191. The reversal of 868574188 is 881475868.

It is a happy number.

It is a super-2 number, since 2×868574188² = 1508842240119718688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665433 + ... + 666736.

Almost surely, 2^868574188 is an apocalyptic number.

It is an amenable number.

868574188 is a deficient number, since it is larger than the sum of its proper divisors (660756972).

868574188 is a wasteful number, since it uses less digits than its factorization.

868574188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332336 (or 1332334 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 55.

The square root of 868574188 is about 29471.5827196301. The cubic root of 868574188 is about 954.1184771410.

The spelling of 868574188 in words is "eight hundred sixty-eight million, five hundred seventy-four thousand, one hundred eighty-eight".