268278112502167 has 2 divisors, whose sum is σ = 268278112502168. Its totient is φ = 268278112502166.

The previous prime is 268278112502087. The next prime is 268278112502177. The reversal of 268278112502167 is 761205211872862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268278112502167 - 2⁷ = 268278112502039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268278112502177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134139056251083 + 134139056251084.

It is an arithmetic number, because the mean of its divisors is an integer number (134139056251084).

Almost surely, 2^{268278112502167} is an apocalyptic number.

268278112502167 is a deficient number, since it is larger than the sum of its proper divisors (1).

268278112502167 is an equidigital number, since it uses as much as digits as its factorization.

268278112502167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 268278112502167 in words is "two hundred sixty-eight trillion, two hundred seventy-eight billion, one hundred twelve million, five hundred two thousand, one hundred sixty-seven".