2643909016 has 16 divisors (see below), whose sum is σ = 5665519440. Its totient is φ = 1133103840.

The previous prime is 2643908999. The next prime is 2643909029. The reversal of 2643909016 is 6109093462.

It is a self number, because there is not a number n which added to its sum of digits gives 2643909016.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23606275 + ... + 23606386.

It is an arithmetic number, because the mean of its divisors is an integer number (354094965).

Almost surely, 2^2643909016 is an apocalyptic number.

It is an amenable number.

2643909016 is an abundant number, since it is smaller than the sum of its proper divisors (3021610424).

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

2643909016 is a wasteful number, since it uses less digits than its factorization.

2643909016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47212674 (or 47212670 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 2643909016 is about 51418.9558042557. The cubic root of 2643909016 is about 1382.7664549251.

The spelling of 2643909016 in words is "two billion, six hundred forty-three million, nine hundred nine thousand, sixteen".