2650643683 has 4 divisors (see below), whose sum is σ = 2660424928. Its totient is φ = 2640862440.

The previous prime is 2650643663. The next prime is 2650643687. The reversal of 2650643683 is 3863460562.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2650643683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2650643687) 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, 4890216 + ... + 4890757.

It is an arithmetic number, because the mean of its divisors is an integer number (665106232).

Almost surely, 2^2650643683 is an apocalyptic number.

2650643683 is a deficient number, since it is larger than the sum of its proper divisors (9781245).

2650643683 is an equidigital number, since it uses as much as digits as its factorization.

2650643683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781244.

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 2650643683 is about 51484.4023273069. The cubic root of 2650643683 is about 1383.9395381260.

The spelling of 2650643683 in words is "two billion, six hundred fifty million, six hundred forty-three thousand, six hundred eighty-three".