44447587616 has 24 divisors (see below), whose sum is σ = 87544829484. Its totient is φ = 22213980160.

The previous prime is 44447587577. The next prime is 44447587621. The reversal of 44447587616 is 61678574444.

It can be written as a sum of positive squares in 2 ways, for example, as 42681907216 + 1765680400 = 206596^2 + 42020^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232805 + ... + 378276.

Almost surely, 2^44447587616 is an apocalyptic number.

It is an amenable number.

44447587616 is a deficient number, since it is larger than the sum of its proper divisors (43097241868).

44447587616 is a wasteful number, since it uses less digits than its factorization.

44447587616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613364 (or 613356 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 56.

The spelling of 44447587616 in words is "forty-four billion, four hundred forty-seven million, five hundred eighty-seven thousand, six hundred sixteen".