268193998745895 has 16 divisors (see below), whose sum is σ = 451695155783040. Its totient is φ = 135508546734624.

The previous prime is 268193998745891. The next prime is 268193998746001. The reversal of 268193998745895 is 598547899391862.

It is not a de Polignac number, because 268193998745895 - 2² = 268193998745891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268193998745799 and 268193998745808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268193998745891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470515786989 + ... + 470515787558.

It is an arithmetic number, because the mean of its divisors is an integer number (28230947236440).

Almost surely, 2^{268193998745895} is an apocalyptic number.

268193998745895 is a deficient number, since it is larger than the sum of its proper divisors (183501157037145).

268193998745895 is a wasteful number, since it uses less digits than its factorization.

268193998745895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941031574574.

The product of its digits is 84652646400, while the sum is 93.

The spelling of 268193998745895 in words is "two hundred sixty-eight trillion, one hundred ninety-three billion, nine hundred ninety-eight million, seven hundred forty-five thousand, eight hundred ninety-five".