44107765649 has 2 divisors, whose sum is σ = 44107765650. Its totient is φ = 44107765648.

The previous prime is 44107765621. The next prime is 44107765661. The reversal of 44107765649 is 94656770144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25268281600 + 18839484049 = 158960^2 + 137257^2 .

It is a cyclic number.

It is not a de Polignac number, because 44107765649 - 2⁸ = 44107765393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44107765649.

It is not a weakly prime, because it can be changed into another prime (44107765679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22053882824 + 22053882825.

It is an arithmetic number, because the mean of its divisors is an integer number (22053882825).

Almost surely, 2^44107765649 is an apocalyptic number.

It is an amenable number.

44107765649 is a deficient number, since it is larger than the sum of its proper divisors (1).

44107765649 is an equidigital number, since it uses as much as digits as its factorization.

44107765649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 44107765649 in words is "forty-four billion, one hundred seven million, seven hundred sixty-five thousand, six hundred forty-nine".