2108187650 has 12 divisors (see below), whose sum is σ = 3921229122. Its totient is φ = 843275040.

The previous prime is 2108187583. The next prime is 2108187671. The reversal of 2108187650 is 567818012.

It can be written as a sum of positive squares in 3 ways, for example, as 2053086721 + 55100929 = 45311^2 + 7423^2 .

It is a super-2 number, since 2×2108187650² = 8888910335225045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 21081827 + ... + 21081926.

Almost surely, 2^2108187650 is an apocalyptic number.

2108187650 is a deficient number, since it is larger than the sum of its proper divisors (1813041472).

2108187650 is a wasteful number, since it uses less digits than its factorization.

2108187650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42163765 (or 42163760 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 2108187650 is about 45915.0046281169. The cubic root of 2108187650 is about 1282.2412819615.

The spelling of 2108187650 in words is "two billion, one hundred eight million, one hundred eighty-seven thousand, six hundred fifty".