2186992650 has 96 divisors (see below), whose sum is σ = 5641210368. Its totient is φ = 560102400.

The previous prime is 2186992649. The next prime is 2186992657. The reversal of 2186992650 is 562996812.

It is a self number, because there is not a number n which added to its sum of digits gives 2186992650.

It is not an unprimeable number, because it can be changed into a prime (2186992657) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 635334 + ... + 638766.

It is an arithmetic number, because the mean of its divisors is an integer number (58762608).

Almost surely, 2^2186992650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2186992650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2820605184).

2186992650 is an abundant number, since it is smaller than the sum of its proper divisors (3454217718).

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

2186992650 is a wasteful number, since it uses less digits than its factorization.

2186992650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 2186992650 is about 46765.2932205070. The cubic root of 2186992650 is about 1298.0231591551.

The spelling of 2186992650 in words is "two billion, one hundred eighty-six million, nine hundred ninety-two thousand, six hundred fifty".