268389512093 has 2 divisors, whose sum is σ = 268389512094. Its totient is φ = 268389512092.

The previous prime is 268389512081. The next prime is 268389512117. The reversal of 268389512093 is 390215983862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268301208484 + 88303609 = 517978^2 + 9397^2 .

It is a cyclic number.

It is not a de Polignac number, because 268389512093 - 2³⁴ = 251209642909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268389512063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134194756046 + 134194756047.

It is an arithmetic number, because the mean of its divisors is an integer number (134194756047).

Almost surely, 2^268389512093 is an apocalyptic number.

It is an amenable number.

268389512093 is a deficient number, since it is larger than the sum of its proper divisors (1).

268389512093 is an equidigital number, since it uses as much as digits as its factorization.

268389512093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 268389512093 in words is "two hundred sixty-eight billion, three hundred eighty-nine million, five hundred twelve thousand, ninety-three".