2782323641 has 4 divisors (see below), whose sum is σ = 2782440192. Its totient is φ = 2782207092.

The previous prime is 2782323619. The next prime is 2782323671. The reversal of 2782323641 is 1463232872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2782323641 - 2¹⁰ = 2782322617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2782323595 and 2782323604.

It is not an unprimeable number, because it can be changed into a prime (2782323601) 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, 8021 + ... + 75026.

It is an arithmetic number, because the mean of its divisors is an integer number (695610048).

Almost surely, 2^2782323641 is an apocalyptic number.

It is an amenable number.

2782323641 is a deficient number, since it is larger than the sum of its proper divisors (116551).

2782323641 is an equidigital number, since it uses as much as digits as its factorization.

2782323641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116550.

The product of its digits is 96768, while the sum is 38.

The square root of 2782323641 is about 52747.7358850596. The cubic root of 2782323641 is about 1406.4875168166.

The spelling of 2782323641 in words is "two billion, seven hundred eighty-two million, three hundred twenty-three thousand, six hundred forty-one".