4440434037681 has 16 divisors (see below), whose sum is σ = 6021011805120. Its totient is φ = 2910074219520.

The previous prime is 4440434037667. The next prime is 4440434037701. The reversal of 4440434037681 is 1867304340444.

It is not a de Polignac number, because 4440434037681 - 2¹⁹ = 4440433513393 is a prime.

It is a super-2 number, since 2×4440434037681² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4440434037681.

It is not an unprimeable number, because it can be changed into a prime (4440434037601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17531961 + ... + 17783433.

It is an arithmetic number, because the mean of its divisors is an integer number (376313237820).

Almost surely, 2^{4440434037681} is an apocalyptic number.

It is an amenable number.

4440434037681 is a deficient number, since it is larger than the sum of its proper divisors (1580577767439).

4440434037681 is a wasteful number, since it uses less digits than its factorization.

4440434037681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351296.

The product of its (nonzero) digits is 3096576, while the sum is 48.

The spelling of 4440434037681 in words is "four trillion, four hundred forty billion, four hundred thirty-four million, thirty-seven thousand, six hundred eighty-one".