2493444823 has 4 divisors (see below), whose sum is σ = 2493547560. Its totient is φ = 2493342088.

The previous prime is 2493444787. The next prime is 2493444839. The reversal of 2493444823 is 3284443942.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2493444823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2493444823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493444923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7608 + ... + 71026.

It is an arithmetic number, because the mean of its divisors is an integer number (623386890).

Almost surely, 2^2493444823 is an apocalyptic number.

2493444823 is a deficient number, since it is larger than the sum of its proper divisors (102737).

2493444823 is an equidigital number, since it uses as much as digits as its factorization.

2493444823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102736.

The product of its digits is 663552, while the sum is 43.

The square root of 2493444823 is about 49934.4052032264. The cubic root of 2493444823 is about 1356.0215374607.

The spelling of 2493444823 in words is "two billion, four hundred ninety-three million, four hundred forty-four thousand, eight hundred twenty-three".