268178871799 has 2 divisors, whose sum is σ = 268178871800. Its totient is φ = 268178871798.

The previous prime is 268178871791. The next prime is 268178871811. The reversal of 268178871799 is 997178871862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 268178871799 - 2³ = 268178871791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268178871791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134089435899 + 134089435900.

It is an arithmetic number, because the mean of its divisors is an integer number (134089435900).

Almost surely, 2^268178871799 is an apocalyptic number.

268178871799 is a deficient number, since it is larger than the sum of its proper divisors (1).

268178871799 is an equidigital number, since it uses as much as digits as its factorization.

268178871799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170698752, while the sum is 73.

The spelling of 268178871799 in words is "two hundred sixty-eight billion, one hundred seventy-eight million, eight hundred seventy-one thousand, seven hundred ninety-nine".