1144083440639 has 16 divisors (see below), whose sum is σ = 1153758028896. Its totient is φ = 1134453465600.

The previous prime is 1144083440629. The next prime is 1144083440707. The reversal of 1144083440639 is 9360443804411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144083440639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144083440593 and 1144083440602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144083440629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258781649 + ... + 258786069.

It is an arithmetic number, because the mean of its divisors is an integer number (72109876806).

Almost surely, 2^{1144083440639} is an apocalyptic number.

1144083440639 is a deficient number, since it is larger than the sum of its proper divisors (9674588257).

1144083440639 is a wasteful number, since it uses less digits than its factorization.

1144083440639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 1144083440639 in words is "one trillion, one hundred forty-four billion, eighty-three million, four hundred forty thousand, six hundred thirty-nine".