13268851273728 has 130 divisors (see below), whose sum is σ = 39637902631844. Its totient is φ = 4422950313984.

The previous prime is 13268851273723. The next prime is 13268851273729. The reversal of 13268851273728 is 82737215886231.

It is a happy number.

13268851273728 is a `hidden beast` number, since 1 + 3 + 2 + 6 + 88 + 512 + 7 + 37 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (13268851273723) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19664926 + ... + 20328477.

Almost surely, 2^{13268851273728} is an apocalyptic number.

13268851273728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13268851273728 is an abundant number, since it is smaller than the sum of its proper divisors (26369051358116).

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

13268851273728 is an frugal number, since it uses more digits than its factorization.

13268851273728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39993439 (or 39993408 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 13268851273728 in words is "thirteen trillion, two hundred sixty-eight billion, eight hundred fifty-one million, two hundred seventy-three thousand, seven hundred twenty-eight".