2168487266 has 16 divisors (see below), whose sum is σ = 3568263840. Its totient is φ = 980167680.

The previous prime is 2168487199. The next prime is 2168487319. The reversal of 2168487266 is 6627848612.

It is a happy 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, 271391 + ... + 279266.

It is an arithmetic number, because the mean of its divisors is an integer number (223016490).

Almost surely, 2^2168487266 is an apocalyptic number.

2168487266 is a deficient number, since it is larger than the sum of its proper divisors (1399776574).

2168487266 is a wasteful number, since it uses less digits than its factorization.

2168487266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550849.

The product of its digits is 1548288, while the sum is 50.

The square root of 2168487266 is about 46567.0190800313. The cubic root of 2168487266 is about 1294.3516809705.

The spelling of 2168487266 in words is "two billion, one hundred sixty-eight million, four hundred eighty-seven thousand, two hundred sixty-six".