2186972108 has 24 divisors (see below), whose sum is σ = 3844061760. Its totient is φ = 1088680320.

The previous prime is 2186972107. The next prime is 2186972111. The reversal of 2186972108 is 8012796812.

It is a Smith number, since the sum of its digits (44) 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 (2186972101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358408 + ... + 1360016.

It is an arithmetic number, because the mean of its divisors is an integer number (160169240).

Almost surely, 2^2186972108 is an apocalyptic number.

It is an amenable number.

2186972108 is a deficient number, since it is larger than the sum of its proper divisors (1657089652).

2186972108 is a wasteful number, since it uses less digits than its factorization.

2186972108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897 (or 2895 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 2186972108 is about 46765.0735913032. The cubic root of 2186972108 is about 1298.0190951153.

The spelling of 2186972108 in words is "two billion, one hundred eighty-six million, nine hundred seventy-two thousand, one hundred eight".