2646827849 has 4 divisors (see below), whose sum is σ = 2647799760. Its totient is φ = 2645855940.

The previous prime is 2646827797. The next prime is 2646827861. The reversal of 2646827849 is 9487286462.

2646827849 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9487286462 = 2 ⋅4743643231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2646827849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2646827794 and 2646827803.

It is not an unprimeable number, because it can be changed into a prime (2646827899) 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, 481859 + ... + 487320.

It is an arithmetic number, because the mean of its divisors is an integer number (661949940).

Almost surely, 2^2646827849 is an apocalyptic number.

It is an amenable number.

2646827849 is a deficient number, since it is larger than the sum of its proper divisors (971911).

2646827849 is an equidigital number, since it uses as much as digits as its factorization.

2646827849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971910.

The product of its digits is 9289728, while the sum is 56.

The square root of 2646827849 is about 51447.3308248348. The cubic root of 2646827849 is about 1383.2751184224.

The spelling of 2646827849 in words is "two billion, six hundred forty-six million, eight hundred twenty-seven thousand, eight hundred forty-nine".