244452728657 has 4 divisors (see below), whose sum is σ = 245719323300. Its totient is φ = 243186134016.

The previous prime is 244452728651. The next prime is 244452728659. The reversal of 244452728657 is 756827254442.

244452728657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145881219136 + 98571509521 = 381944^2 + 313961^2 .

It is a cyclic number.

It is not a de Polignac number, because 244452728657 - 2¹⁰ = 244452727633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244452728651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633297032 + ... + 633297417.

It is an arithmetic number, because the mean of its divisors is an integer number (61429830825).

Almost surely, 2^244452728657 is an apocalyptic number.

It is an amenable number.

244452728657 is a deficient number, since it is larger than the sum of its proper divisors (1266594643).

244452728657 is a wasteful number, since it uses less digits than its factorization.

244452728657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266594642.

The product of its digits is 30105600, while the sum is 56.

The spelling of 244452728657 in words is "two hundred forty-four billion, four hundred fifty-two million, seven hundred twenty-eight thousand, six hundred fifty-seven".