44246780009 has 2 divisors, whose sum is σ = 44246780010. Its totient is φ = 44246780008.

The previous prime is 44246779991. The next prime is 44246780023. The reversal of 44246780009 is 90008764244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42664968025 + 1581811984 = 206555^2 + 39772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44246780009 is a prime.

It is not a weakly prime, because it can be changed into another prime (44246780029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22123390004 + 22123390005.

It is an arithmetic number, because the mean of its divisors is an integer number (22123390005).

Almost surely, 2^44246780009 is an apocalyptic number.

It is an amenable number.

44246780009 is a deficient number, since it is larger than the sum of its proper divisors (1).

44246780009 is an equidigital number, since it uses as much as digits as its factorization.

44246780009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 44246780009 in words is "forty-four billion, two hundred forty-six million, seven hundred eighty thousand, nine".