2646485647 has 4 divisors (see below), whose sum is σ = 2850061480. Its totient is φ = 2442909816.

The previous prime is 2646485641. The next prime is 2646485687. The reversal of 2646485647 is 7465846462.

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 2646485647 - 2⁷ = 2646485519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2646485594 and 2646485603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646485641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101787897 + ... + 101787922.

It is an arithmetic number, because the mean of its divisors is an integer number (712515370).

Almost surely, 2^2646485647 is an apocalyptic number.

2646485647 is a deficient number, since it is larger than the sum of its proper divisors (203575833).

2646485647 is a wasteful number, since it uses less digits than its factorization.

2646485647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203575832.

The product of its digits is 7741440, while the sum is 52.

The square root of 2646485647 is about 51444.0049665653. The cubic root of 2646485647 is about 1383.2155024166.

The spelling of 2646485647 in words is "two billion, six hundred forty-six million, four hundred eighty-five thousand, six hundred forty-seven".