268534851680 has 48 divisors (see below), whose sum is σ = 637258575744. Its totient is φ = 106932249600.

The previous prime is 268534851679. The next prime is 268534851691. The reversal of 268534851680 is 86158435862.

It is a super-2 number, since 2×268534851680² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727421 + ... + 3798780.

It is an arithmetic number, because the mean of its divisors is an integer number (13276220328).

Almost surely, 2^268534851680 is an apocalyptic number.

268534851680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268534851680 is an abundant number, since it is smaller than the sum of its proper divisors (368723724064).

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

268534851680 is a wasteful number, since it uses less digits than its factorization.

268534851680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526439 (or 7526431 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 268534851680 in words is "two hundred sixty-eight billion, five hundred thirty-four million, eight hundred fifty-one thousand, six hundred eighty".