44131521405321 has 48 divisors (see below), whose sum is σ = 73183339966464. Its totient is φ = 25103344135392.

The previous prime is 44131521405299. The next prime is 44131521405353. The reversal of 44131521405321 is 12350412513144.

44131521405321 is a `hidden beast` number, since 4 + 4 + 1 + 31 + 52 + 1 + 40 + 532 + 1 = 666.

It is not a de Polignac number, because 44131521405321 - 2⁵ = 44131521405289 is a prime.

It is a super-2 number, since 2×44131521405321² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44131521405121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244179630 + ... + 244360296.

It is an arithmetic number, because the mean of its divisors is an integer number (1524652915968).

Almost surely, 2^{44131521405321} is an apocalyptic number.

It is an amenable number.

44131521405321 is a deficient number, since it is larger than the sum of its proper divisors (29051818561143).

44131521405321 is a wasteful number, since it uses less digits than its factorization.

44131521405321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198290 (or 198287 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 44131521405321 its reverse (12350412513144), we get a palindrome (56481933918465).

The spelling of 44131521405321 in words is "forty-four trillion, one hundred thirty-one billion, five hundred twenty-one million, four hundred five thousand, three hundred twenty-one".