2491843506 has 32 divisors (see below), whose sum is σ = 5203467648. Its totient is φ = 794027520.

The previous prime is 2491843469. The next prime is 2491843579. The reversal of 2491843506 is 6053481942.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 282840 + ... + 291516.

It is an arithmetic number, because the mean of its divisors is an integer number (162608364).

Almost surely, 2^2491843506 is an apocalyptic number.

2491843506 is an abundant number, since it is smaller than the sum of its proper divisors (2711624142).

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

2491843506 is a wasteful number, since it uses less digits than its factorization.

2491843506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10786.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2491843506 is about 49918.3684228561. The cubic root of 2491843506 is about 1355.7311914405.

The spelling of 2491843506 in words is "two billion, four hundred ninety-one million, eight hundred forty-three thousand, five hundred six".