44667742909 has 2 divisors, whose sum is σ = 44667742910. Its totient is φ = 44667742908.

The previous prime is 44667742907. The next prime is 44667742919. The reversal of 44667742909 is 90924776644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41091344100 + 3576398809 = 202710^2 + 59803^2 .

It is a cyclic number.

It is not a de Polignac number, because 44667742909 - 2¹ = 44667742907 is a prime.

Together with 44667742907, 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 (44667742907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22333871454 + 22333871455.

It is an arithmetic number, because the mean of its divisors is an integer number (22333871455).

Almost surely, 2^44667742909 is an apocalyptic number.

It is an amenable number.

44667742909 is a deficient number, since it is larger than the sum of its proper divisors (1).

44667742909 is an equidigital number, since it uses as much as digits as its factorization.

44667742909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 44667742909 in words is "forty-four billion, six hundred sixty-seven million, seven hundred forty-two thousand, nine hundred nine".