44566421309 has 2 divisors, whose sum is σ = 44566421310. Its totient is φ = 44566421308.

The previous prime is 44566421239. The next prime is 44566421369. The reversal of 44566421309 is 90312466544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35526595225 + 9039826084 = 188485^2 + 95078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44566421309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44566421309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44566421369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22283210654 + 22283210655.

It is an arithmetic number, because the mean of its divisors is an integer number (22283210655).

Almost surely, 2^44566421309 is an apocalyptic number.

It is an amenable number.

44566421309 is a deficient number, since it is larger than the sum of its proper divisors (1).

44566421309 is an equidigital number, since it uses as much as digits as its factorization.

44566421309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 44566421309 in words is "forty-four billion, five hundred sixty-six million, four hundred twenty-one thousand, three hundred nine".