2643009202 has 4 divisors (see below), whose sum is σ = 3964513806. Its totient is φ = 1321504600.

The previous prime is 2643009179. The next prime is 2643009203. The reversal of 2643009202 is 2029003462.

2643009202 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.

It can be written as a sum of positive squares in only one way, i.e., 1546141041 + 1096868161 = 39321^2 + 33119^2 .

It is not an unprimeable number, because it can be changed into a prime (2643009203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660752299 + ... + 660752302.

Almost surely, 2^2643009202 is an apocalyptic number.

2643009202 is a deficient number, since it is larger than the sum of its proper divisors (1321504604).

2643009202 is a wasteful number, since it uses less digits than its factorization.

2643009202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321504603.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2643009202 is about 51410.2052320354. The cubic root of 2643009202 is about 1382.6095693205.

The spelling of 2643009202 in words is "two billion, six hundred forty-three million, nine thousand, two hundred two".