13628442155584 has 63 divisors (see below), whose sum is σ = 27124998635721. Its totient is φ = 6793857815040.

The previous prime is 13628442155569. The next prime is 13628442155591. The reversal of 13628442155584 is 48555124482631.

The square root of 13628442155584 is 3691672.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2246185617984 + 11382256537600 = 1498728^2 + 3373760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16804490539 + ... + 16804491349.

Almost surely, 2^{13628442155584} is an apocalyptic number.

13628442155584 is the 3691672-nd square number.

It is an amenable number.

13628442155584 is a deficient number, since it is larger than the sum of its proper divisors (13496556480137).

13628442155584 is an frugal number, since it uses more digits than its factorization.

13628442155584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 1382 counting only the distinct ones).

The product of its digits is 36864000, while the sum is 58.

The spelling of 13628442155584 in words is "thirteen trillion, six hundred twenty-eight billion, four hundred forty-two million, one hundred fifty-five thousand, five hundred eighty-four".