2081426193 has 256 divisors, whose sum is σ = 4423680000. Its totient is φ = 934053120.

The previous prime is 2081426183. The next prime is 2081426203. The reversal of 2081426193 is 3916241802.

2081426193 is a `hidden beast` number, since 20 + 8 + 14 + 2 + 619 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (2081426183) and next prime (2081426203).

It is not a de Polignac number, because 2081426193 - 2⁸ = 2081425937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2081426183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 26347128 + ... + 26347206.

It is an arithmetic number, because the mean of its divisors is an integer number (17280000).

Almost surely, 2^2081426193 is an apocalyptic number.

2081426193 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2081426193 is an abundant number, since it is smaller than the sum of its proper divisors (2342253807).

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

2081426193 is a wasteful number, since it uses less digits than its factorization.

2081426193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2081426193 is about 45622.6499997534. The cubic root of 2081426193 is about 1276.7925457741.

Adding to 2081426193 its reverse (3916241802), we get a palindrome (5997667995).

The spelling of 2081426193 in words is "two billion, eighty-one million, four hundred twenty-six thousand, one hundred ninety-three".