268312463 has 2 divisors, whose sum is σ = 268312464. Its totient is φ = 268312462.

The previous prime is 268312439. The next prime is 268312481. The reversal of 268312463 is 364213862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268312463 is a prime.

It is a super-2 number, since 2×268312463² = 143983155602252738, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268312063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134156231 + 134156232.

It is an arithmetic number, because the mean of its divisors is an integer number (134156232).

Almost surely, 2^268312463 is an apocalyptic number.

268312463 is a deficient number, since it is larger than the sum of its proper divisors (1).

268312463 is an equidigital number, since it uses as much as digits as its factorization.

268312463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 268312463 is about 16380.2461214720. The cubic root of 268312463 is about 644.9810406462.

The spelling of 268312463 in words is "two hundred sixty-eight million, three hundred twelve thousand, four hundred sixty-three".