7666368713 has 4 divisors (see below), whose sum is σ = 7745403540. Its totient is φ = 7587333888.

The previous prime is 7666368707. The next prime is 7666368719. The reversal of 7666368713 is 3178636667.

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

It is an interprime number because it is at equal distance from previous prime (7666368707) and next prime (7666368719).

It can be written as a sum of positive squares in 2 ways, for example, as 5205911104 + 2460457609 = 72152^2 + 49603^2 .

It is a cyclic number.

It is not a de Polignac number, because 7666368713 - 2¹⁴ = 7666352329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7666368719) 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, 39517268 + ... + 39517461.

It is an arithmetic number, because the mean of its divisors is an integer number (1936350885).

Almost surely, 2^7666368713 is an apocalyptic number.

It is an amenable number.

7666368713 is a deficient number, since it is larger than the sum of its proper divisors (79034827).

7666368713 is an equidigital number, since it uses as much as digits as its factorization.

7666368713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79034826.

The product of its digits is 4572288, while the sum is 53.

The square root of 7666368713 is about 87557.8021252247. The cubic root of 7666368713 is about 1971.8016888525.

The spelling of 7666368713 in words is "seven billion, six hundred sixty-six million, three hundred sixty-eight thousand, seven hundred thirteen".