2668408711 has 4 divisors (see below), whose sum is σ = 2681818000. Its totient is φ = 2654999424.

The previous prime is 2668408703. The next prime is 2668408739. The reversal of 2668408711 is 1178048662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2668408711 - 2³ = 2668408703 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 (2668408741) 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, 6704346 + ... + 6704743.

It is an arithmetic number, because the mean of its divisors is an integer number (670454500).

Almost surely, 2^2668408711 is an apocalyptic number.

2668408711 is a deficient number, since it is larger than the sum of its proper divisors (13409289).

2668408711 is a wasteful number, since it uses less digits than its factorization.

2668408711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13409288.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 2668408711 is about 51656.6424673536. The cubic root of 2668408711 is about 1387.0244494900.

The spelling of 2668408711 in words is "two billion, six hundred sixty-eight million, four hundred eight thousand, seven hundred eleven".