2643682317 has 4 divisors (see below), whose sum is σ = 3524909760. Its totient is φ = 1762454876.

The previous prime is 2643682313. The next prime is 2643682331. The reversal of 2643682317 is 7132863462.

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.

It is a cyclic number.

It is not a de Polignac number, because 2643682317 - 2² = 2643682313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643682313) 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, 440613717 + ... + 440613722.

It is an arithmetic number, because the mean of its divisors is an integer number (881227440).

Almost surely, 2^2643682317 is an apocalyptic number.

It is an amenable number.

2643682317 is a deficient number, since it is larger than the sum of its proper divisors (881227443).

2643682317 is an equidigital number, since it uses as much as digits as its factorization.

2643682317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881227442.

The product of its digits is 290304, while the sum is 42.

The square root of 2643682317 is about 51416.7513267807. The cubic root of 2643682317 is about 1382.7269325448.

The spelling of 2643682317 in words is "two billion, six hundred forty-three million, six hundred eighty-two thousand, three hundred seventeen".