268518268125 has 90 divisors (see below), whose sum is σ = 501773342070. Its totient is φ = 138163704000.

The previous prime is 268518268111. The next prime is 268518268157. The reversal of 268518268125 is 521862815862.

268518268125 is a `hidden beast` number, since 2 + 6 + 8 + 518 + 26 + 81 + 25 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 102059164089 + 166459104036 = 319467^2 + 407994^2 .

It is not a de Polignac number, because 268518268125 - 2⁸ = 268518267869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 209288734 + ... + 209290016.

Almost surely, 2^268518268125 is an apocalyptic number.

268518268125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

268518268125 is a deficient number, since it is larger than the sum of its proper divisors (233255073945).

268518268125 is an frugal number, since it uses more digits than its factorization.

268518268125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 1320 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 268518268125 in words is "two hundred sixty-eight billion, five hundred eighteen million, two hundred sixty-eight thousand, one hundred twenty-five".