268866121260 has 72 divisors (see below), whose sum is σ = 827485506288. Its totient is φ = 65179664000.

The previous prime is 268866121259. The next prime is 268866121319. The reversal of 268866121260 is 62121668862.

It is a super-2 number, since 2×268866121260² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18509691 + ... + 18524210.

It is an arithmetic number, because the mean of its divisors is an integer number (11492854254).

Almost surely, 2^268866121260 is an apocalyptic number.

268866121260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268866121260 is an abundant number, since it is smaller than the sum of its proper divisors (558619385028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268866121260 is a wasteful number, since it uses less digits than its factorization.

268866121260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37033935 (or 37033922 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 268866121260 in words is "two hundred sixty-eight billion, eight hundred sixty-six million, one hundred twenty-one thousand, two hundred sixty".