2668271613 has 16 divisors (see below), whose sum is σ = 4175829120. Its totient is φ = 1483517376.

The previous prime is 2668271521. The next prime is 2668271629. The reversal of 2668271613 is 3161728662.

It is not a de Polignac number, because 2668271613 - 2¹⁰ = 2668270589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668271113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1716258 + ... + 1717811.

It is an arithmetic number, because the mean of its divisors is an integer number (260989320).

Almost surely, 2^2668271613 is an apocalyptic number.

It is an amenable number.

2668271613 is a deficient number, since it is larger than the sum of its proper divisors (1507557507).

2668271613 is a wasteful number, since it uses less digits than its factorization.

2668271613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434116.

The product of its digits is 145152, while the sum is 42.

The square root of 2668271613 is about 51655.3154380070. The cubic root of 2668271613 is about 1387.0006948163. Note that the first 3 decimals are identical.

The spelling of 2668271613 in words is "two billion, six hundred sixty-eight million, two hundred seventy-one thousand, six hundred thirteen".