2186541266 has 24 divisors (see below), whose sum is σ = 4058875584. Its totient is φ = 865004400.

The previous prime is 2186541263. The next prime is 2186541283. The reversal of 2186541266 is 6621456812.

It is not an unprimeable number, because it can be changed into a prime (2186541263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459710 + ... + 464441.

It is an arithmetic number, because the mean of its divisors is an integer number (169119816).

Almost surely, 2^2186541266 is an apocalyptic number.

2186541266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2186541266 is a deficient number, since it is larger than the sum of its proper divisors (1872334318).

2186541266 is a wasteful number, since it uses less digits than its factorization.

2186541266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924186 (or 924173 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 2186541266 is about 46760.4669138365. The cubic root of 2186541266 is about 1297.9338512495.

The spelling of 2186541266 in words is "two billion, one hundred eighty-six million, five hundred forty-one thousand, two hundred sixty-six".