268793563 has 2 divisors, whose sum is σ = 268793564. Its totient is φ = 268793562.

The previous prime is 268793549. The next prime is 268793593. The reversal of 268793563 is 365397862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268793563 - 2¹⁷ = 268662491 is a prime.

It is not a weakly prime, because it can be changed into another prime (268793593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134396781 + 134396782.

It is an arithmetic number, because the mean of its divisors is an integer number (134396782).

Almost surely, 2^268793563 is an apocalyptic number.

268793563 is a deficient number, since it is larger than the sum of its proper divisors (1).

268793563 is an equidigital number, since it uses as much as digits as its factorization.

268793563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 49.

The square root of 268793563 is about 16394.9249159610. The cubic root of 268793563 is about 645.3663067615.

The spelling of 268793563 in words is "two hundred sixty-eight million, seven hundred ninety-three thousand, five hundred sixty-three".