268561411 has 2 divisors, whose sum is σ = 268561412. Its totient is φ = 268561410.

The previous prime is 268561399. The next prime is 268561457. The reversal of 268561411 is 114165862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268561411 - 2⁷ = 268561283 is a prime.

It is not a weakly prime, because it can be changed into another prime (268561481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134280705 + 134280706.

It is an arithmetic number, because the mean of its divisors is an integer number (134280706).

Almost surely, 2^268561411 is an apocalyptic number.

268561411 is a deficient number, since it is larger than the sum of its proper divisors (1).

268561411 is an equidigital number, since it uses as much as digits as its factorization.

268561411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 34.

The square root of 268561411 is about 16387.8433907577. The cubic root of 268561411 is about 645.1804562882.

The spelling of 268561411 in words is "two hundred sixty-eight million, five hundred sixty-one thousand, four hundred eleven".