2668779941 has 4 divisors (see below), whose sum is σ = 2668922592. Its totient is φ = 2668637292.

The previous prime is 2668779937. The next prime is 2668779943. The reversal of 2668779941 is 1499778662.

2668779941 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2668779941 - 2² = 2668779937 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 (2668779943) 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, 38105 + ... + 82398.

It is an arithmetic number, because the mean of its divisors is an integer number (667230648).

Almost surely, 2^2668779941 is an apocalyptic number.

It is an amenable number.

2668779941 is a deficient number, since it is larger than the sum of its proper divisors (142651).

2668779941 is a wasteful number, since it uses less digits than its factorization.

2668779941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142650.

The product of its digits is 9144576, while the sum is 59.

The square root of 2668779941 is about 51660.2355879258. The cubic root of 2668779941 is about 1387.0887676244.

The spelling of 2668779941 in words is "two billion, six hundred sixty-eight million, seven hundred seventy-nine thousand, nine hundred forty-one".