44889609085 has 4 divisors (see below), whose sum is σ = 53867530908. Its totient is φ = 35911687264.

The previous prime is 44889609067. The next prime is 44889609109. The reversal of 44889609085 is 58090698844.

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 32343144964 + 12546464121 = 179842^2 + 112011^2 .

It is a cyclic number.

It is not a de Polignac number, because 44889609085 - 2⁵ = 44889609053 is a prime.

It is a super-2 number, since 2×44889609085² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4488960904 + ... + 4488960913.

It is an arithmetic number, because the mean of its divisors is an integer number (13466882727).

Almost surely, 2^44889609085 is an apocalyptic number.

It is an amenable number.

44889609085 is a deficient number, since it is larger than the sum of its proper divisors (8977921823).

44889609085 is an equidigital number, since it uses as much as digits as its factorization.

44889609085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977921822.

The product of its (nonzero) digits is 19906560, while the sum is 61.

The spelling of 44889609085 in words is "forty-four billion, eight hundred eighty-nine million, six hundred nine thousand, eighty-five".