2141982491 has 8 divisors (see below), whose sum is σ = 2362964400. Its totient is φ = 1925376640.

The previous prime is 2141982449. The next prime is 2141982497. The reversal of 2141982491 is 1942891412.

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

It is a de Polignac number, because none of the positive numbers 2^k-2141982491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141982497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092986 + ... + 1094943.

It is an arithmetic number, because the mean of its divisors is an integer number (295370550).

Almost surely, 2^2141982491 is an apocalyptic number.

2141982491 is a deficient number, since it is larger than the sum of its proper divisors (220981909).

2141982491 is a wasteful number, since it uses less digits than its factorization.

2141982491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188029.

The product of its digits is 41472, while the sum is 41.

The square root of 2141982491 is about 46281.5567045881. The cubic root of 2141982491 is about 1289.0565565388.

The spelling of 2141982491 in words is "two billion, one hundred forty-one million, nine hundred eighty-two thousand, four hundred ninety-one".