244485319681 has 8 divisors (see below), whose sum is σ = 258879524904. Its totient is φ = 230092527360.

The previous prime is 244485319597. The next prime is 244485319699. The reversal of 244485319681 is 186913584442.

244485319681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60868784656 + 183616535025 = 246716^2 + 428505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244485319681 - 2²⁵ = 244451765249 is a prime.

It is a super-2 number, since 2×244485319681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244485319081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13951 + ... + 699403.

It is an arithmetic number, because the mean of its divisors is an integer number (32359940613).

Almost surely, 2^244485319681 is an apocalyptic number.

It is an amenable number.

244485319681 is a deficient number, since it is larger than the sum of its proper divisors (14394205223).

244485319681 is a wasteful number, since it uses less digits than its factorization.

244485319681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706451.

The product of its digits is 6635520, while the sum is 55.

The spelling of 244485319681 in words is "two hundred forty-four billion, four hundred eighty-five million, three hundred nineteen thousand, six hundred eighty-one".