44121440413 has 16 divisors (see below), whose sum is σ = 45677847600. Its totient is φ = 42589048320.

The previous prime is 44121440411. The next prime is 44121440437. The reversal of 44121440413 is 31404412144.

44121440413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1849258009 + 42272182404 = 43003^2 + 205602^2 .

It is a cyclic number.

It is not a de Polignac number, because 44121440413 - 2¹ = 44121440411 is a prime.

It is a super-2 number, since 2×44121440413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44121440411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3269043 + ... + 3282511.

It is an arithmetic number, because the mean of its divisors is an integer number (2854865475).

Almost surely, 2^44121440413 is an apocalyptic number.

It is an amenable number.

44121440413 is a deficient number, since it is larger than the sum of its proper divisors (1556407187).

44121440413 is a wasteful number, since it uses less digits than its factorization.

44121440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14352.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 44121440413 its reverse (31404412144), we get a palindrome (75525852557).

The spelling of 44121440413 in words is "forty-four billion, one hundred twenty-one million, four hundred forty thousand, four hundred thirteen".