44424539685 has 24 divisors (see below), whose sum is σ = 77058401784. Its totient is φ = 23675898240.

The previous prime is 44424539671. The next prime is 44424539729. The reversal of 44424539685 is 58693542444.

44424539685 is a `hidden beast` number, since 4 + 4 + 4 + 24 + 539 + 6 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 156800484 + 44267739201 = 12522^2 + 210399^2 .

It is not a de Polignac number, because 44424539685 - 2⁷ = 44424539557 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 295282 + ... + 419571.

It is an arithmetic number, because the mean of its divisors is an integer number (3210766741).

Almost surely, 2^44424539685 is an apocalyptic number.

44424539685 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44424539685 is a deficient number, since it is larger than the sum of its proper divisors (32633862099).

44424539685 is a wasteful number, since it uses less digits than its factorization.

44424539685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716245 (or 716242 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 44424539685 in words is "forty-four billion, four hundred twenty-four million, five hundred thirty-nine thousand, six hundred eighty-five".