44490579489 has 24 divisors (see below), whose sum is σ = 65319511400. Its totient is φ = 29175489792.

The previous prime is 44490579481. The next prime is 44490579509. The reversal of 44490579489 is 98497509444.

44490579489 is a `hidden beast` number, since 4 + 4 + 490 + 57 + 94 + 8 + 9 = 666.

44490579489 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 4 ways, for example, as 2397081600 + 42093497889 = 48960^2 + 205167^2 .

It is not a de Polignac number, because 44490579489 - 2³ = 44490579481 is a prime.

It is a super-2 number, since 2×44490579489² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44490579481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154287 + ... + 335835.

Almost surely, 2^44490579489 is an apocalyptic number.

It is an amenable number.

44490579489 is a deficient number, since it is larger than the sum of its proper divisors (20828931911).

44490579489 is a wasteful number, since it uses less digits than its factorization.

44490579489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182001 (or 181998 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 44490579489 in words is "forty-four billion, four hundred ninety million, five hundred seventy-nine thousand, four hundred eighty-nine".