2668937933 has 4 divisors (see below), whose sum is σ = 2825934300. Its totient is φ = 2511941568.

The previous prime is 2668937897. The next prime is 2668937959. The reversal of 2668937933 is 3397398662.

2668937933 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 2 ways, for example, as 1759131364 + 909806569 = 41942^2 + 30163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2668937933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668937633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78498158 + ... + 78498191.

It is an arithmetic number, because the mean of its divisors is an integer number (706483575).

Almost surely, 2^2668937933 is an apocalyptic number.

It is an amenable number.

2668937933 is a deficient number, since it is larger than the sum of its proper divisors (156996367).

2668937933 is a wasteful number, since it uses less digits than its factorization.

2668937933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156996366.

The product of its digits is 8817984, while the sum is 56.

The square root of 2668937933 is about 51661.7647104704. The cubic root of 2668937933 is about 1387.1161390087.

The spelling of 2668937933 in words is "two billion, six hundred sixty-eight million, nine hundred thirty-seven thousand, nine hundred thirty-three".