44327512681 has 9 divisors (see below), whose sum is σ = 44621887621. Its totient is φ = 44035071232.

The previous prime is 44327512667. The next prime is 44327512711. The reversal of 44327512681 is 18621572344.

The square root of 44327512681 is 210541.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4191397081 + 40136115600 = 64741^2 + 200340^2 .

It is not a de Polignac number, because 44327512681 - 2¹⁹ = 44326988393 is a prime.

It is a super-2 number, since 2×44327512681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44327512661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36422985 + ... + 36424201.

Almost surely, 2^44327512681 is an apocalyptic number.

44327512681 is the 210541-st square number.

44327512681 is the 105271-st centered octagonal number.

It is an amenable number.

44327512681 is a deficient number, since it is larger than the sum of its proper divisors (294374940).

44327512681 is an frugal number, since it uses more digits than its factorization.

44327512681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780 (or 1390 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The spelling of 44327512681 in words is "forty-four billion, three hundred twenty-seven million, five hundred twelve thousand, six hundred eighty-one".