744426641697 has 16 divisors (see below), whose sum is σ = 1049180928000. Its totient is φ = 468196971984.

The previous prime is 744426641681. The next prime is 744426641711. The reversal of 744426641697 is 796146624447.

It is a happy number.

It is not a de Polignac number, because 744426641697 - 2⁴ = 744426641681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 744426641697.

It is not an unprimeable number, because it can be changed into a prime (744426641297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27308797 + ... + 27336042.

It is an arithmetic number, because the mean of its divisors is an integer number (65573808000).

Almost surely, 2^744426641697 is an apocalyptic number.

It is an amenable number.

744426641697 is a deficient number, since it is larger than the sum of its proper divisors (304754286303).

744426641697 is a wasteful number, since it uses less digits than its factorization.

744426641697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54645100.

The product of its digits is 48771072, while the sum is 60.

The spelling of 744426641697 in words is "seven hundred forty-four billion, four hundred twenty-six million, six hundred forty-one thousand, six hundred ninety-seven".