76868159 has 2 divisors, whose sum is σ = 76868160. Its totient is φ = 76868158.

The previous prime is 76868123. The next prime is 76868161. The reversal of 76868159 is 95186867.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (95186867) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76868159 is a prime.

Together with 76868161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76867159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38434079 + 38434080.

It is an arithmetic number, because the mean of its divisors is an integer number (38434080).

Almost surely, 2^76868159 is an apocalyptic number.

76868159 is a deficient number, since it is larger than the sum of its proper divisors (1).

76868159 is an equidigital number, since it uses as much as digits as its factorization.

76868159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 76868159 is about 8767.4488307603. The cubic root of 76868159 is about 425.1891365778.

The spelling of 76868159 in words is "seventy-six million, eight hundred sixty-eight thousand, one hundred fifty-nine".