768568501 has 2 divisors, whose sum is σ = 768568502. Its totient is φ = 768568500.

The previous prime is 768568499. The next prime is 768568513. The reversal of 768568501 is 105865867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438274225 + 330294276 = 20935^2 + 18174^2 .

It is an emirp because it is prime and its reverse (105865867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 768568501 - 2¹ = 768568499 is a prime.

Together with 768568499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768568531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384284250 + 384284251.

It is an arithmetic number, because the mean of its divisors is an integer number (384284251).

Almost surely, 2^768568501 is an apocalyptic number.

It is an amenable number.

768568501 is a deficient number, since it is larger than the sum of its proper divisors (1).

768568501 is an equidigital number, since it uses as much as digits as its factorization.

768568501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 768568501 is about 27723.0680300720. The cubic root of 768568501 is about 915.9973005298.

The spelling of 768568501 in words is "seven hundred sixty-eight million, five hundred sixty-eight thousand, five hundred one".