268075078133 has 2 divisors, whose sum is σ = 268075078134. Its totient is φ = 268075078132.

The previous prime is 268075078127. The next prime is 268075078157. The reversal of 268075078133 is 331870570862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151443948964 + 116631129169 = 389158^2 + 341513^2 .

It is a cyclic number.

It is not a de Polignac number, because 268075078133 - 2³² = 263780110837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268075078333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134037539066 + 134037539067.

It is an arithmetic number, because the mean of its divisors is an integer number (134037539067).

Almost surely, 2^268075078133 is an apocalyptic number.

It is an amenable number.

268075078133 is a deficient number, since it is larger than the sum of its proper divisors (1).

268075078133 is an equidigital number, since it uses as much as digits as its factorization.

268075078133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 268075078133 in words is "two hundred sixty-eight billion, seventy-five million, seventy-eight thousand, one hundred thirty-three".