44563649913 has 12 divisors (see below), whose sum is σ = 64545115648. Its totient is φ = 29628146520.

The previous prime is 44563649881. The next prime is 44563649917. The reversal of 44563649913 is 31994636544.

It is a happy number.

44563649913 is a `hidden beast` number, since 4 + 4 + 563 + 64 + 9 + 9 + 13 = 666.

It is not a de Polignac number, because 44563649913 - 2⁵ = 44563649881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44563649913.

It is not an unprimeable number, because it can be changed into a prime (44563649917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6742633 + ... + 6749238.

Almost surely, 2^44563649913 is an apocalyptic number.

It is an amenable number.

44563649913 is a deficient number, since it is larger than the sum of its proper divisors (19981465735).

44563649913 is a wasteful number, since it uses less digits than its factorization.

44563649913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13492244 (or 13492241 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The spelling of 44563649913 in words is "forty-four billion, five hundred sixty-three million, six hundred forty-nine thousand, nine hundred thirteen".