44092681681 has 2 divisors, whose sum is σ = 44092681682. Its totient is φ = 44092681680.

The previous prime is 44092681673. The next prime is 44092681741. The reversal of 44092681681 is 18618629044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35630337600 + 8462344081 = 188760^2 + 91991^2 .

It is a cyclic number.

It is not a de Polignac number, because 44092681681 - 2³ = 44092681673 is a prime.

It is a super-2 number, since 2×44092681681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44092681651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22046340840 + 22046340841.

It is an arithmetic number, because the mean of its divisors is an integer number (22046340841).

Almost surely, 2^44092681681 is an apocalyptic number.

It is an amenable number.

44092681681 is a deficient number, since it is larger than the sum of its proper divisors (1).

44092681681 is an equidigital number, since it uses as much as digits as its factorization.

44092681681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 44092681681 in words is "forty-four billion, ninety-two million, six hundred eighty-one thousand, six hundred eighty-one".