2186519852 has 18 divisors (see below), whose sum is σ = 4205889324. Its totient is φ = 993872440.

The previous prime is 2186519849. The next prime is 2186519861. The reversal of 2186519852 is 2589156812.

It is a junction number, because it is equal to n+sod(n) for n = 2186519797 and 2186519806.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2258318 + ... + 2259285.

It is an arithmetic number, because the mean of its divisors is an integer number (233660518).

Almost surely, 2^2186519852 is an apocalyptic number.

2186519852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2186519852 is a deficient number, since it is larger than the sum of its proper divisors (2019369472).

2186519852 is a wasteful number, since it uses less digits than its factorization.

2186519852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517629 (or 4517616 counting only the distinct ones).

The product of its digits is 345600, while the sum is 47.

The square root of 2186519852 is about 46760.2379378035. The cubic root of 2186519852 is about 1297.9296141092.

The spelling of 2186519852 in words is "two billion, one hundred eighty-six million, five hundred nineteen thousand, eight hundred fifty-two".