268784208047 has 2 divisors, whose sum is σ = 268784208048. Its totient is φ = 268784208046.

The previous prime is 268784208023. The next prime is 268784208061. The reversal of 268784208047 is 740802487862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268784208047 - 2¹⁰ = 268784207023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268784207983 and 268784208001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268789208047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134392104023 + 134392104024.

It is an arithmetic number, because the mean of its divisors is an integer number (134392104024).

Almost surely, 2^268784208047 is an apocalyptic number.

268784208047 is a deficient number, since it is larger than the sum of its proper divisors (1).

268784208047 is an equidigital number, since it uses as much as digits as its factorization.

268784208047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9633792, while the sum is 56.

The spelling of 268784208047 in words is "two hundred sixty-eight billion, seven hundred eighty-four million, two hundred eight thousand, forty-seven".