268960019 has 2 divisors, whose sum is σ = 268960020. Its totient is φ = 268960018.

The previous prime is 268959989. The next prime is 268960031. The reversal of 268960019 is 910069862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268960019 is a prime.

It is a super-2 number, since 2×268960019² = 144678983640960722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (268960079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134480009 + 134480010.

It is an arithmetic number, because the mean of its divisors is an integer number (134480010).

Almost surely, 2^268960019 is an apocalyptic number.

268960019 is a deficient number, since it is larger than the sum of its proper divisors (1).

268960019 is an equidigital number, since it uses as much as digits as its factorization.

268960019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 268960019 is about 16400.0005792683. Note that the first 3 decimals coincide. The cubic root of 268960019 is about 645.4994981039.

The spelling of 268960019 in words is "two hundred sixty-eight million, nine hundred sixty thousand, nineteen".