2491843579 has 2 divisors, whose sum is σ = 2491843580. Its totient is φ = 2491843578.

The previous prime is 2491843469. The next prime is 2491843633. The reversal of 2491843579 is 9753481942.

2491843579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2491843579 - 2⁷ = 2491843451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2491841579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245921789 + 1245921790.

It is an arithmetic number, because the mean of its divisors is an integer number (1245921790).

Almost surely, 2^2491843579 is an apocalyptic number.

2491843579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491843579 is an equidigital number, since it uses as much as digits as its factorization.

2491843579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 2491843579 is about 49918.3691540499. The cubic root of 2491843579 is about 1355.7312046795.

The spelling of 2491843579 in words is "two billion, four hundred ninety-one million, eight hundred forty-three thousand, five hundred seventy-nine".