268788887839 has 2 divisors, whose sum is σ = 268788887840. Its totient is φ = 268788887838.

The previous prime is 268788887821. The next prime is 268788887981. The reversal of 268788887839 is 938788887862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268788887839 - 2¹¹ = 268788885791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268788881839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134394443919 + 134394443920.

It is an arithmetic number, because the mean of its divisors is an integer number (134394443920).

Almost surely, 2^268788887839 is an apocalyptic number.

268788887839 is a deficient number, since it is larger than the sum of its proper divisors (1).

268788887839 is an equidigital number, since it uses as much as digits as its factorization.

268788887839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4161798144, while the sum is 82.

The spelling of 268788887839 in words is "two hundred sixty-eight billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, eight hundred thirty-nine".