44443506121 has 6 divisors (see below), whose sum is σ = 51699588810. Its totient is φ = 38094433776.

The previous prime is 44443506103. The next prime is 44443506127. The reversal of 44443506121 is 12160534444.

It can be written as a sum of positive squares in only one way, i.e., 40296146121 + 4147360000 = 200739^2 + 64400^2 .

It is not a de Polignac number, because 44443506121 - 2⁵ = 44443506089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44443506127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453505116 + ... + 453505213.

It is an arithmetic number, because the mean of its divisors is an integer number (8616598135).

Almost surely, 2^44443506121 is an apocalyptic number.

It is an amenable number.

44443506121 is a deficient number, since it is larger than the sum of its proper divisors (7256082689).

44443506121 is an equidigital number, since it uses as much as digits as its factorization.

44443506121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907010343 (or 907010336 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

It can be divided in two parts, 44443 and 506121, that added together give a square (550564 = 742²).

The spelling of 44443506121 in words is "forty-four billion, four hundred forty-three million, five hundred six thousand, one hundred twenty-one".