2491843505 has 8 divisors (see below), whose sum is σ = 3013757952. Its totient is φ = 1977777648.

The previous prime is 2491843469. The next prime is 2491843579. The reversal of 2491843505 is 5053481942.

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

It is a cyclic number.

It is not a de Polignac number, because 2491843505 - 2¹⁰ = 2491842481 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1961447 + ... + 1962716.

It is an arithmetic number, because the mean of its divisors is an integer number (376719744).

Almost surely, 2^2491843505 is an apocalyptic number.

It is an amenable number.

2491843505 is a deficient number, since it is larger than the sum of its proper divisors (521914447).

2491843505 is a wasteful number, since it uses less digits than its factorization.

2491843505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3924295.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 2491843505 is about 49918.3684128398. The cubic root of 2491843505 is about 1355.7311912592.

The spelling of 2491843505 in words is "two billion, four hundred ninety-one million, eight hundred forty-three thousand, five hundred five".