44581366404 has 18 divisors (see below), whose sum is σ = 112691787390. Its totient is φ = 14860455456.

The previous prime is 44581366393. The next prime is 44581366429. The reversal of 44581366404 is 40466318544.

44581366404 is a `hidden beast` number, since 4 + 4 + 581 + 3 + 6 + 64 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42749697600 + 1831668804 = 206760^2 + 42798^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 44581366404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 619185609 + ... + 619185680.

It is an arithmetic number, because the mean of its divisors is an integer number (6260654855).

Almost surely, 2^44581366404 is an apocalyptic number.

It is an amenable number.

44581366404 is an abundant number, since it is smaller than the sum of its proper divisors (68110420986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44581366404 is a wasteful number, since it uses less digits than its factorization.

44581366404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238371299 (or 1238371294 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 45.

Adding to 44581366404 its sum of digits (45), we get a square (44581366449 = 211143²).

The spelling of 44581366404 in words is "forty-four billion, five hundred eighty-one million, three hundred sixty-six thousand, four hundred four".