44193979766609 has 2 divisors, whose sum is σ = 44193979766610. Its totient is φ = 44193979766608.

The previous prime is 44193979766603. The next prime is 44193979766723. The reversal of 44193979766609 is 90666797939144.

44193979766609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43337666428225 + 856313338384 = 6583135^2 + 925372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44193979766609 is a prime.

It is a super-2 number, since 2×44193979766609² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44193979766603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22096989883304 + 22096989883305.

It is an arithmetic number, because the mean of its divisors is an integer number (22096989883305).

Almost surely, 2^{44193979766609} is an apocalyptic number.

It is an amenable number.

44193979766609 is a deficient number, since it is larger than the sum of its proper divisors (1).

44193979766609 is an equidigital number, since it uses as much as digits as its factorization.

44193979766609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3333197952, while the sum is 80.

The spelling of 44193979766609 in words is "forty-four trillion, one hundred ninety-three billion, nine hundred seventy-nine million, seven hundred sixty-six thousand, six hundred nine".