44645840285 has 16 divisors (see below), whose sum is σ = 55086680880. Its totient is φ = 34721256960.

The previous prime is 44645840279. The next prime is 44645840347. The reversal of 44645840285 is 58204854644.

It can be written as a sum of positive squares in 8 ways, for example, as 1097663161 + 43548177124 = 33131^2 + 208682^2 .

It is not a de Polignac number, because 44645840285 - 2¹⁰ = 44645839261 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 743936 + ... + 801705.

It is an arithmetic number, because the mean of its divisors is an integer number (3442917555).

Almost surely, 2^44645840285 is an apocalyptic number.

It is an amenable number.

44645840285 is a deficient number, since it is larger than the sum of its proper divisors (10440840595).

44645840285 is a wasteful number, since it uses less digits than its factorization.

44645840285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545808.

The product of its (nonzero) digits is 4915200, while the sum is 50.

The spelling of 44645840285 in words is "forty-four billion, six hundred forty-five million, eight hundred forty thousand, two hundred eighty-five".