268069819 has 2 divisors, whose sum is σ = 268069820. Its totient is φ = 268069818.

The previous prime is 268069817. The next prime is 268069829. The reversal of 268069819 is 918960862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268069819 - 2¹ = 268069817 is a prime.

It is a super-2 number, since 2×268069819² = 143722855717385522, which contains 22 as substring.

Together with 268069817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (268069817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134034909 + 134034910.

It is an arithmetic number, because the mean of its divisors is an integer number (134034910).

Almost surely, 2^268069819 is an apocalyptic number.

268069819 is a deficient number, since it is larger than the sum of its proper divisors (1).

268069819 is an equidigital number, since it uses as much as digits as its factorization.

268069819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 268069819 is about 16372.8378419870. The cubic root of 268069819 is about 644.7865559797.

The spelling of 268069819 in words is "two hundred sixty-eight million, sixty-nine thousand, eight hundred nineteen".