1326727683864 has 96 divisors (see below), whose sum is σ = 3986315985600. Its totient is φ = 395224463040.

The previous prime is 1326727683863. The next prime is 1326727683887. The reversal of 1326727683864 is 4683867276231.

1326727683864 is a `hidden beast` number, since 1 + 326 + 7 + 276 + 8 + 38 + 6 + 4 = 666.

It is a super-2 number, since 2×1326727683864² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326727683863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14149554 + ... + 14243009.

It is an arithmetic number, because the mean of its divisors is an integer number (41524124850).

Almost surely, 2^{1326727683864} is an apocalyptic number.

It is an amenable number.

1326727683864 is an abundant number, since it is smaller than the sum of its proper divisors (2659588301736).

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

1326727683864 is a wasteful number, since it uses less digits than its factorization.

1326727683864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28392645 (or 28392638 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 1326727683864 in words is "one trillion, three hundred twenty-six billion, seven hundred twenty-seven million, six hundred eighty-three thousand, eight hundred sixty-four".