4149661986 has 24 divisors (see below), whose sum is σ = 9143325360. Its totient is φ = 1359775896.

The previous prime is 4149661963. The next prime is 4149662003. The reversal of 4149661986 is 6891669414.

It is a happy number.

4149661986 is a `hidden beast` number, since 4 + 1 + 496 + 61 + 98 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1952640 + ... + 1954763.

It is an arithmetic number, because the mean of its divisors is an integer number (380971890).

Almost surely, 2^4149661986 is an apocalyptic number.

4149661986 is an abundant number, since it is smaller than the sum of its proper divisors (4993663374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4149661986 is a wasteful number, since it uses less digits than its factorization.

4149661986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907470 (or 3907467 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 4149661986 is about 64417.8700827651. The cubic root of 4149661986 is about 1606.9569444951.

The spelling of 4149661986 in words is "four billion, one hundred forty-nine million, six hundred sixty-one thousand, nine hundred eighty-six".