2186992648 has 32 divisors (see below), whose sum is σ = 4194374400. Its totient is φ = 1068708928.

The previous prime is 2186992607. The next prime is 2186992649. The reversal of 2186992648 is 8462996812.

It is not an unprimeable number, because it can be changed into a prime (2186992649) 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, 68265 + ... + 95047.

It is an arithmetic number, because the mean of its divisors is an integer number (131074200).

Almost surely, 2^2186992648 is an apocalyptic number.

It is an amenable number.

2186992648 is a deficient number, since it is larger than the sum of its proper divisors (2007381752).

2186992648 is a wasteful number, since it uses less digits than its factorization.

2186992648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27021 (or 27017 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 55.

The square root of 2186992648 is about 46765.2931991236. The cubic root of 2186992648 is about 1298.0231587594.

The spelling of 2186992648 in words is "two billion, one hundred eighty-six million, nine hundred ninety-two thousand, six hundred forty-eight".