44221543121788 has 12 divisors (see below), whose sum is σ = 77907081004200. Its totient is φ = 21962377120592.

The previous prime is 44221543121747. The next prime is 44221543121801. The reversal of 44221543121788 is 88712134512244.

It is a congruent number.

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, 37098609406 + ... + 37098610597.

It is an arithmetic number, because the mean of its divisors is an integer number (6492256750350).

Almost surely, 2^{44221543121788} is an apocalyptic number.

It is an amenable number.

44221543121788 is a deficient number, since it is larger than the sum of its proper divisors (33685537882412).

44221543121788 is a wasteful number, since it uses less digits than its factorization.

44221543121788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74197220156 (or 74197220154 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The spelling of 44221543121788 in words is "forty-four trillion, two hundred twenty-one billion, five hundred forty-three million, one hundred twenty-one thousand, seven hundred eighty-eight".