12895553917444 has 189 divisors, whose sum is σ = 26573427986007. Its totient is φ = 5474896534800.

The previous prime is 12895553917399. The next prime is 12895553917481. The reversal of 12895553917444 is 44471935559821.

The square root of 12895553917444 is 3591038.

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

It is a Duffinian number.

Its product of digits (217728000) is a multiple of the sum of its prime factors (250).

It is a self number, because there is not a number n which added to its sum of digits gives 12895553917444.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 181627519929 + ... + 181627519999.

Almost surely, 2^{12895553917444} is an apocalyptic number.

12895553917444 is the 3591038-th square number.

It is an amenable number.

12895553917444 is an abundant number, since it is smaller than the sum of its proper divisors (13677874068563).

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

12895553917444 is an frugal number, since it uses more digits than its factorization.

12895553917444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 103 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 67.

The spelling of 12895553917444 in words is "twelve trillion, eight hundred ninety-five billion, five hundred fifty-three million, nine hundred seventeen thousand, four hundred forty-four".