2312782783 has 4 divisors (see below), whose sum is σ = 2356420248. Its totient is φ = 2269145320.

The previous prime is 2312782763. The next prime is 2312782789. The reversal of 2312782783 is 3872872132.

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

It is a cyclic number.

It is not a de Polignac number, because 2312782783 - 2⁵ = 2312782751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312782789) 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, 21818653 + ... + 21818758.

It is an arithmetic number, because the mean of its divisors is an integer number (589105062).

Almost surely, 2^2312782783 is an apocalyptic number.

2312782783 is a deficient number, since it is larger than the sum of its proper divisors (43637465).

2312782783 is an equidigital number, since it uses as much as digits as its factorization.

2312782783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43637464.

The product of its digits is 225792, while the sum is 43.

The square root of 2312782783 is about 48091.4003019251. The cubic root of 2312782783 is about 1322.4470187215.

The spelling of 2312782783 in words is "two billion, three hundred twelve million, seven hundred eighty-two thousand, seven hundred eighty-three".