2644850806 has 16 divisors (see below), whose sum is σ = 4497318000. Its totient is φ = 1156452768.

The previous prime is 2644850797. The next prime is 2644850807. The reversal of 2644850806 is 6080584462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644850807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2676481 + ... + 2677468.

It is an arithmetic number, because the mean of its divisors is an integer number (281082375).

Almost surely, 2^2644850806 is an apocalyptic number.

2644850806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2644850806 is a deficient number, since it is larger than the sum of its proper divisors (1852467194).

2644850806 is a wasteful number, since it uses less digits than its factorization.

2644850806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5353983.

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 2644850806 is about 51428.1129927980. The cubic root of 2644850806 is about 1382.9306210662.

The spelling of 2644850806 in words is "two billion, six hundred forty-four million, eight hundred fifty thousand, eight hundred six".