1118552868 has 24 divisors (see below), whose sum is σ = 2899952160. Its totient is φ = 372850920.

The previous prime is 1118552867. The next prime is 1118552887. The reversal of 1118552868 is 8682558111.

1118552868 is a `hidden beast` number, since 1 + 1 + 18 + 552 + 86 + 8 = 666.

It is a super-2 number, since 2×1118552868² = 2502321037022050848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1118552861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5178378 + ... + 5178593.

It is an arithmetic number, because the mean of its divisors is an integer number (120831340).

Almost surely, 2^1118552868 is an apocalyptic number.

1118552868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1118552868 is an abundant number, since it is smaller than the sum of its proper divisors (1781399292).

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

1118552868 is a wasteful number, since it uses less digits than its factorization.

1118552868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356984 (or 10356976 counting only the distinct ones).

The product of its digits is 153600, while the sum is 45.

The square root of 1118552868 is about 33444.7734033287. The cubic root of 1118552868 is about 1038.0513523326.

The spelling of 1118552868 in words is "one billion, one hundred eighteen million, five hundred fifty-two thousand, eight hundred sixty-eight".