44449786689 has 24 divisors (see below), whose sum is σ = 74450335680. Its totient is φ = 23090796960.

The previous prime is 44449786673. The next prime is 44449786739. The reversal of 44449786689 is 98668794444.

44449786689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44449786689 - 2⁴ = 44449786673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44449786639) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8743974 + ... + 8749055.

It is an arithmetic number, because the mean of its divisors is an integer number (3102097320).

Almost surely, 2^44449786689 is an apocalyptic number.

It is an amenable number.

44449786689 is a deficient number, since it is larger than the sum of its proper divisors (30000548991).

44449786689 is a wasteful number, since it uses less digits than its factorization.

44449786689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17493061 (or 17493050 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 69.

It can be divided in two parts, 44449 and 786689, that added together give a palindrome (831138).

The spelling of 44449786689 in words is "forty-four billion, four hundred forty-nine million, seven hundred eighty-six thousand, six hundred eighty-nine".