44550440644 has 6 divisors (see below), whose sum is σ = 77963271134. Its totient is φ = 22275220320.

The previous prime is 44550440593. The next prime is 44550440677. The reversal of 44550440644 is 44604405544.

It can be written as a sum of positive squares in only one way, i.e., 34266452544 + 10283988100 = 185112^2 + 101410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 44550440597 and 44550440606.

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 as a sum of consecutive naturals, namely, 5568805077 + ... + 5568805084.

Almost surely, 2^44550440644 is an apocalyptic number.

It is an amenable number.

44550440644 is a deficient number, since it is larger than the sum of its proper divisors (33412830490).

44550440644 is a wasteful number, since it uses less digits than its factorization.

44550440644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137610165 (or 11137610163 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

The spelling of 44550440644 in words is "forty-four billion, five hundred fifty million, four hundred forty thousand, six hundred forty-four".