2126666450 has 12 divisors (see below), whose sum is σ = 3955599690. Its totient is φ = 850666560.

The previous prime is 2126666413. The next prime is 2126666453. The reversal of 2126666450 is 546666212.

It can be written as a sum of positive squares in 3 ways, for example, as 840942001 + 1285724449 = 28999^2 + 35857^2 .

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 not an unprimeable number, because it can be changed into a prime (2126666453) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 21266615 + ... + 21266714.

Almost surely, 2^2126666450 is an apocalyptic number.

2126666450 is a deficient number, since it is larger than the sum of its proper divisors (1828933240).

2126666450 is a wasteful number, since it uses less digits than its factorization.

2126666450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42533341 (or 42533336 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2126666450 is about 46115.7939322311. The cubic root of 2126666450 is about 1285.9767790626.

The spelling of 2126666450 in words is "two billion, one hundred twenty-six million, six hundred sixty-six thousand, four hundred fifty".