268590295243 has 2 divisors, whose sum is σ = 268590295244. Its totient is φ = 268590295242.

The previous prime is 268590295231. The next prime is 268590295283. The reversal of 268590295243 is 342592095862.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268590295243 is a prime.

It is not a weakly prime, because it can be changed into another prime (268590295283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134295147621 + 134295147622.

It is an arithmetic number, because the mean of its divisors is an integer number (134295147622).

Almost surely, 2^268590295243 is an apocalyptic number.

268590295243 is a deficient number, since it is larger than the sum of its proper divisors (1).

268590295243 is an equidigital number, since it uses as much as digits as its factorization.

268590295243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 268590295243 in words is "two hundred sixty-eight billion, five hundred ninety million, two hundred ninety-five thousand, two hundred forty-three".