2491301919 has 16 divisors (see below), whose sum is σ = 3343689440. Its totient is φ = 1649911680.

The previous prime is 2491301899. The next prime is 2491301951. The reversal of 2491301919 is 9191031942.

It is not a de Polignac number, because 2491301919 - 2¹¹ = 2491299871 is a prime.

It is a super-2 number, since 2×2491301919² = 12413170503226165122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491301959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669837 + ... + 673545.

It is an arithmetic number, because the mean of its divisors is an integer number (208980590).

Almost surely, 2^2491301919 is an apocalyptic number.

2491301919 is a deficient number, since it is larger than the sum of its proper divisors (852387521).

2491301919 is a wasteful number, since it uses less digits than its factorization.

2491301919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5130.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 2491301919 is about 49912.9434014866. The cubic root of 2491301919 is about 1355.6329643531.

The spelling of 2491301919 in words is "two billion, four hundred ninety-one million, three hundred one thousand, nine hundred nineteen".