7668693359 has 4 divisors (see below), whose sum is σ = 7736558016. Its totient is φ = 7600828704.

The previous prime is 7668693323. The next prime is 7668693391. The reversal of 7668693359 is 9533968667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9533968667 = 24379 ⋅391073.

It is a cyclic number.

It is not a de Polignac number, because 7668693359 - 2²⁰ = 7667644783 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 (7668693859) 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, 33932159 + ... + 33932384.

It is an arithmetic number, because the mean of its divisors is an integer number (1934139504).

Almost surely, 2^7668693359 is an apocalyptic number.

7668693359 is a deficient number, since it is larger than the sum of its proper divisors (67864657).

7668693359 is a wasteful number, since it uses less digits than its factorization.

7668693359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67864656.

The product of its digits is 44089920, while the sum is 62.

The square root of 7668693359 is about 87571.0760411222. The cubic root of 7668693359 is about 1972.0009695400. Note that the first 3 decimals are identical.

The spelling of 7668693359 in words is "seven billion, six hundred sixty-eight million, six hundred ninety-three thousand, three hundred fifty-nine".