44588989989 has 24 divisors (see below), whose sum is σ = 65556109944. Its totient is φ = 29196720000.

The previous prime is 44588989961. The next prime is 44588990009. The reversal of 44588989989 is 98998988544.

It is a happy number.

44588989989 is a `hidden beast` number, since 4 + 458 + 8 + 9 + 89 + 9 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 159516900 + 44429473089 = 12630^2 + 210783^2 .

It is not a de Polignac number, because 44588989989 - 2⁵ = 44588989957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44588989789) 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, 326919 + ... + 442779.

It is an arithmetic number, because the mean of its divisors is an integer number (2731504581).

Almost surely, 2^44588989989 is an apocalyptic number.

It is an amenable number.

44588989989 is a deficient number, since it is larger than the sum of its proper divisors (20967119955).

44588989989 is a wasteful number, since it uses less digits than its factorization.

44588989989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116629 (or 116626 counting only the distinct ones).

The product of its digits is 2149908480, while the sum is 81.

The spelling of 44588989989 in words is "forty-four billion, five hundred eighty-eight million, nine hundred eighty-nine thousand, nine hundred eighty-nine".