2081142791 has 8 divisors (see below), whose sum is σ = 2561406624. Its totient is φ = 1646618400.

The previous prime is 2081142781. The next prime is 2081142793. The reversal of 2081142791 is 1972411802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2081142791 - 2¹⁰ = 2081141767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081142793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11434760 + ... + 11434941.

It is an arithmetic number, because the mean of its divisors is an integer number (320175828).

Almost surely, 2^2081142791 is an apocalyptic number.

2081142791 is a deficient number, since it is larger than the sum of its proper divisors (480263833).

2081142791 is a wasteful number, since it uses less digits than its factorization.

2081142791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22869721.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 2081142791 is about 45619.5439587026. The cubic root of 2081142791 is about 1276.7345948067.

The spelling of 2081142791 in words is "two billion, eighty-one million, one hundred forty-two thousand, seven hundred ninety-one".