2782863623 has 4 divisors (see below), whose sum is σ = 2782984320. Its totient is φ = 2782742928.

The previous prime is 2782863617. The next prime is 2782863653. The reversal of 2782863623 is 3263682872.

2782863623 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, 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-2782863623 is a prime.

It is a super-2 number, since 2×2782863623² = 15488659888433372258, which 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 (2782863653) 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, 13790 + ... + 75867.

It is an arithmetic number, because the mean of its divisors is an integer number (695746080).

Almost surely, 2^2782863623 is an apocalyptic number.

2782863623 is a deficient number, since it is larger than the sum of its proper divisors (120697).

2782863623 is an equidigital number, since it uses as much as digits as its factorization.

2782863623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120696.

The product of its digits is 1161216, while the sum is 47.

The square root of 2782863623 is about 52752.8541692296. The cubic root of 2782863623 is about 1406.5784993805.

The spelling of 2782863623 in words is "two billion, seven hundred eighty-two million, eight hundred sixty-three thousand, six hundred twenty-three".