44444540313 has 12 divisors (see below), whose sum is σ = 64362706980. Its totient is φ = 29553522336.

The previous prime is 44444540279. The next prime is 44444540317. The reversal of 44444540313 is 31304544444.

44444540313 is a `hidden beast` number, since 4 + 44 + 44 + 540 + 31 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23711996169 + 20732544144 = 153987^2 + 143988^2 .

It is not a de Polignac number, because 44444540313 - 2²⁰ = 44443491737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44444540317) 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 11 ways as a sum of consecutive naturals, for example, 6343906 + ... + 6350907.

It is an arithmetic number, because the mean of its divisors is an integer number (5363558915).

Almost surely, 2^44444540313 is an apocalyptic number.

It is an amenable number.

44444540313 is a deficient number, since it is larger than the sum of its proper divisors (19918166667).

44444540313 is a wasteful number, since it uses less digits than its factorization.

44444540313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12695208 (or 12695205 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

The spelling of 44444540313 in words is "forty-four billion, four hundred forty-four million, five hundred forty thousand, three hundred thirteen".