4065382180765 has 4 divisors (see below), whose sum is σ = 4878458616924. Its totient is φ = 3252305744608.

The previous prime is 4065382180721. The next prime is 4065382180771. The reversal of 4065382180765 is 5670812835604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2621669390649 + 1443712790116 = 1619157^2 + 1201546^2 .

It is a cyclic number.

It is not a de Polignac number, because 4065382180765 - 2¹⁹ = 4065381656477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 406538218072 + ... + 406538218081.

It is an arithmetic number, because the mean of its divisors is an integer number (1219614654231).

Almost surely, 2^{4065382180765} is an apocalyptic number.

It is an amenable number.

4065382180765 is a deficient number, since it is larger than the sum of its proper divisors (813076436159).

4065382180765 is an equidigital number, since it uses as much as digits as its factorization.

4065382180765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813076436158.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 4065382180765 in words is "four trillion, sixty-five billion, three hundred eighty-two million, one hundred eighty thousand, seven hundred sixty-five".