268427854949 has 2 divisors, whose sum is σ = 268427854950. Its totient is φ = 268427854948.

The previous prime is 268427854841. The next prime is 268427855011. The reversal of 268427854949 is 949458724862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 267925288225 + 502566724 = 517615^2 + 22418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268427854949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268427854649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134213927474 + 134213927475.

It is an arithmetic number, because the mean of its divisors is an integer number (134213927475).

Almost surely, 2^268427854949 is an apocalyptic number.

It is an amenable number.

268427854949 is a deficient number, since it is larger than the sum of its proper divisors (1).

268427854949 is an equidigital number, since it uses as much as digits as its factorization.

268427854949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 278691840, while the sum is 68.

The spelling of 268427854949 in words is "two hundred sixty-eight billion, four hundred twenty-seven million, eight hundred fifty-four thousand, nine hundred forty-nine".