44894949109 has 2 divisors, whose sum is σ = 44894949110. Its totient is φ = 44894949108.

The previous prime is 44894949013. The next prime is 44894949139. The reversal of 44894949109 is 90194949844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27240512209 + 17654436900 = 165047^2 + 132870^2 .

It is a cyclic number.

It is not a de Polignac number, because 44894949109 - 2²¹ = 44892851957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44894949139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22447474554 + 22447474555.

It is an arithmetic number, because the mean of its divisors is an integer number (22447474555).

Almost surely, 2^44894949109 is an apocalyptic number.

It is an amenable number.

44894949109 is a deficient number, since it is larger than the sum of its proper divisors (1).

44894949109 is an equidigital number, since it uses as much as digits as its factorization.

44894949109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 44894949109 in words is "forty-four billion, eight hundred ninety-four million, nine hundred forty-nine thousand, one hundred nine".