44002102588821 has 48 divisors (see below), whose sum is σ = 72483334101360. Its totient is φ = 25482116413440.

The previous prime is 44002102588771. The next prime is 44002102588903. The reversal of 44002102588821 is 12888520120044.

It is a happy number.

44002102588821 is a `hidden beast` number, since 4 + 40 + 0 + 2 + 1 + 0 + 2 + 588 + 8 + 21 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 215494637796 + 43786607951025 = 464214^2 + 6617145^2 .

It is not a de Polignac number, because 44002102588821 - 2¹⁰ = 44002102587797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44002102588621) by changing a digit.

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 in 47 ways as a sum of consecutive naturals, for example, 14159011 + ... + 16984751.

It is an arithmetic number, because the mean of its divisors is an integer number (1510069460445).

Almost surely, 2^{44002102588821} is an apocalyptic number.

It is an amenable number.

44002102588821 is a deficient number, since it is larger than the sum of its proper divisors (28481231512539).

44002102588821 is a wasteful number, since it uses less digits than its factorization.

44002102588821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833606 (or 2833603 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The spelling of 44002102588821 in words is "forty-four trillion, two billion, one hundred two million, five hundred eighty-eight thousand, eight hundred twenty-one".