44545446109 has 2 divisors, whose sum is σ = 44545446110. Its totient is φ = 44545446108.

The previous prime is 44545446107. The next prime is 44545446119. The reversal of 44545446109 is 90164454544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44353623609 + 191822500 = 210603^2 + 13850^2 .

It is a cyclic number.

It is not a de Polignac number, because 44545446109 - 2¹ = 44545446107 is a prime.

Together with 44545446107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44545446107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22272723054 + 22272723055.

It is an arithmetic number, because the mean of its divisors is an integer number (22272723055).

Almost surely, 2^44545446109 is an apocalyptic number.

It is an amenable number.

44545446109 is a deficient number, since it is larger than the sum of its proper divisors (1).

44545446109 is an equidigital number, since it uses as much as digits as its factorization.

44545446109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 44545446109 in words is "forty-four billion, five hundred forty-five million, four hundred forty-six thousand, one hundred nine".