744428572106 has 16 divisors (see below), whose sum is σ = 1146908655816. Its totient is φ = 362127200256.

The previous prime is 744428572061. The next prime is 744428572109. The reversal of 744428572106 is 601275824447.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 722185534225 + 22243037881 = 849815^2 + 149141^2 .

It is a super-4 number, since 4×744428572106⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (744428572109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630170 + ... + 1373306.

Almost surely, 2^744428572106 is an apocalyptic number.

744428572106 is a deficient number, since it is larger than the sum of its proper divisors (402480083710).

744428572106 is a wasteful number, since it uses less digits than its factorization.

744428572106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756713.

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 744428572106 in words is "seven hundred forty-four billion, four hundred twenty-eight million, five hundred seventy-two thousand, one hundred six".