44644044149 has 4 divisors (see below), whose sum is σ = 44644578636. Its totient is φ = 44643509664.

The previous prime is 44644044121. The next prime is 44644044169. The reversal of 44644044149 is 94144044644.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20673263524 + 23970780625 = 143782^2 + 154825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44644044149 is a prime.

It is a super-2 number, since 2×44644044149² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44644044169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111824 + ... + 319049.

It is an arithmetic number, because the mean of its divisors is an integer number (11161144659).

Almost surely, 2^44644044149 is an apocalyptic number.

It is an amenable number.

44644044149 is a deficient number, since it is larger than the sum of its proper divisors (534487).

44644044149 is a wasteful number, since it uses less digits than its factorization.

44644044149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534486.

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 44644044149 in words is "forty-four billion, six hundred forty-four million, forty-four thousand, one hundred forty-nine".