2491113499 has 6 divisors (see below), whose sum is σ = 2897825964. Its totient is φ = 2135240100.

The previous prime is 2491113497. The next prime is 2491113511. The reversal of 2491113499 is 9943111942.

It is a happy number.

It is not a de Polignac number, because 2491113499 - 2¹ = 2491113497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491113497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25419477 + ... + 25419574.

It is an arithmetic number, because the mean of its divisors is an integer number (482970994).

Almost surely, 2^2491113499 is an apocalyptic number.

2491113499 is a deficient number, since it is larger than the sum of its proper divisors (406712465).

2491113499 is an equidigital number, since it uses as much as digits as its factorization.

2491113499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50839065 (or 50839058 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 2491113499 is about 49911.0558794342. The cubic root of 2491113499 is about 1355.5987874700.

The spelling of 2491113499 in words is "two billion, four hundred ninety-one million, one hundred thirteen thousand, four hundred ninety-nine".