2491310834719 has 4 divisors (see below), whose sum is σ = 2847212382544. Its totient is φ = 2135409286896.

The previous prime is 2491310834693. The next prime is 2491310834723. The reversal of 2491310834719 is 9174380131942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2491310834719 is a prime.

It is a super-2 number, since 2×2491310834719² (a number of 26 digits) 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 (2491310834729) 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 in 3 ways as a sum of consecutive naturals, for example, 177950773902 + ... + 177950773915.

It is an arithmetic number, because the mean of its divisors is an integer number (711803095636).

Almost surely, 2^{2491310834719} is an apocalyptic number.

2491310834719 is a deficient number, since it is larger than the sum of its proper divisors (355901547825).

2491310834719 is an equidigital number, since it uses as much as digits as its factorization.

2491310834719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355901547824.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 2491310834719 in words is "two trillion, four hundred ninety-one billion, three hundred ten million, eight hundred thirty-four thousand, seven hundred nineteen".