2642944806 has 12 divisors (see below), whose sum is σ = 5726380452. Its totient is φ = 880981596.

The previous prime is 2642944771. The next prime is 2642944849. The reversal of 2642944806 is 6084492462.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73415116 + ... + 73415151.

It is an arithmetic number, because the mean of its divisors is an integer number (477198371).

Almost surely, 2^2642944806 is an apocalyptic number.

2642944806 is an abundant number, since it is smaller than the sum of its proper divisors (3083435646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2642944806 is a wasteful number, since it uses less digits than its factorization.

2642944806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146830275 (or 146830272 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 2642944806 is about 51409.5789323352. The cubic root of 2642944806 is about 1382.5983402955.

The spelling of 2642944806 in words is "two billion, six hundred forty-two million, nine hundred forty-four thousand, eight hundred six".