2491234723 has 16 divisors (see below), whose sum is σ = 2815741440. Its totient is φ = 2189980800.

The previous prime is 2491234687. The next prime is 2491234751. The reversal of 2491234723 is 3274321942.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2491234723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491234783) 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 15 ways as a sum of consecutive naturals, for example, 31383 + ... + 77248.

It is an arithmetic number, because the mean of its divisors is an integer number (175983840).

Almost surely, 2^2491234723 is an apocalyptic number.

2491234723 is a deficient number, since it is larger than the sum of its proper divisors (324506717).

2491234723 is a wasteful number, since it uses less digits than its factorization.

2491234723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108738.

The product of its digits is 72576, while the sum is 37.

The square root of 2491234723 is about 49912.2702649359. The cubic root of 2491234723 is about 1355.6207760897.

The spelling of 2491234723 in words is "two billion, four hundred ninety-one million, two hundred thirty-four thousand, seven hundred twenty-three".