2491608983 has 2 divisors, whose sum is σ = 2491608984. Its totient is φ = 2491608982.

The previous prime is 2491608967. The next prime is 2491609007. The reversal of 2491608983 is 3898061942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2491608983 - 2⁴ = 2491608967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2491608913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245804491 + 1245804492.

It is an arithmetic number, because the mean of its divisors is an integer number (1245804492).

Almost surely, 2^2491608983 is an apocalyptic number.

2491608983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491608983 is an equidigital number, since it uses as much as digits as its factorization.

2491608983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 2491608983 is about 49916.0193024243. The cubic root of 2491608983 is about 1355.6886579881.

The spelling of 2491608983 in words is "two billion, four hundred ninety-one million, six hundred eight thousand, nine hundred eighty-three".