2491075793 has 4 divisors (see below), whose sum is σ = 2491467108. Its totient is φ = 2490684480.

The previous prime is 2491075787. The next prime is 2491075819. The reversal of 2491075793 is 3975701942.

2491075793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1702140049 + 788935744 = 41257^2 + 28088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2491075793 - 2⁴ = 2491075777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491075723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185948 + ... + 198893.

It is an arithmetic number, because the mean of its divisors is an integer number (622866777).

Almost surely, 2^2491075793 is an apocalyptic number.

It is an amenable number.

2491075793 is a deficient number, since it is larger than the sum of its proper divisors (391315).

2491075793 is an equidigital number, since it uses as much as digits as its factorization.

2491075793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391314.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 2491075793 is about 49910.6781460641. The cubic root of 2491075793 is about 1355.5919478960.

The spelling of 2491075793 in words is "two billion, four hundred ninety-one million, seventy-five thousand, seven hundred ninety-three".