7668815411 has 4 divisors (see below), whose sum is σ = 8002242192. Its totient is φ = 7335388632.

The previous prime is 7668815393. The next prime is 7668815417. The reversal of 7668815411 is 1145188667.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1145188667 = 7 ⋅163598381.

It is a cyclic number.

It is not a de Polignac number, because 7668815411 - 2⁶ = 7668815347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668815417) 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, 166713356 + ... + 166713401.

It is an arithmetic number, because the mean of its divisors is an integer number (2000560548).

Almost surely, 2^7668815411 is an apocalyptic number.

7668815411 is a deficient number, since it is larger than the sum of its proper divisors (333426781).

7668815411 is a wasteful number, since it uses less digits than its factorization.

7668815411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333426780.

The product of its digits is 322560, while the sum is 47.

The square root of 7668815411 is about 87571.7729122804. The cubic root of 7668815411 is about 1972.0114313563.

The spelling of 7668815411 in words is "seven billion, six hundred sixty-eight million, eight hundred fifteen thousand, four hundred eleven".