44445428617 has 4 divisors (see below), whose sum is σ = 45479043280. Its totient is φ = 43411813956.

The previous prime is 44445428603. The next prime is 44445428641. The reversal of 44445428617 is 71682454444.

44445428617 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44445428617 - 2¹⁵ = 44445395849 is a prime.

It is a super-3 number, since 3×44445428617³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44445228617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516807267 + ... + 516807352.

It is an arithmetic number, because the mean of its divisors is an integer number (11369760820).

Almost surely, 2^44445428617 is an apocalyptic number.

It is an amenable number.

44445428617 is a deficient number, since it is larger than the sum of its proper divisors (1033614663).

44445428617 is a wasteful number, since it uses less digits than its factorization.

44445428617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033614662.

The product of its digits is 3440640, while the sum is 49.

The spelling of 44445428617 in words is "forty-four billion, four hundred forty-five million, four hundred twenty-eight thousand, six hundred seventeen".