2089277243665 has 8 divisors (see below), whose sum is σ = 2593585544040. Its totient is φ = 1613786560512.

The previous prime is 2089277243623. The next prime is 2089277243699. The reversal of 2089277243665 is 5663427729802.

It can be written as a sum of positive squares in 4 ways, for example, as 915096952449 + 1174180291216 = 956607^2 + 1083596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2089277243665 - 2¹⁹ = 2089276719377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7204404144 + ... + 7204404433.

It is an arithmetic number, because the mean of its divisors is an integer number (324198193005).

Almost surely, 2^{2089277243665} is an apocalyptic number.

It is an amenable number.

2089277243665 is a deficient number, since it is larger than the sum of its proper divisors (504308300375).

2089277243665 is a wasteful number, since it uses less digits than its factorization.

2089277243665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408808611.

The product of its (nonzero) digits is 60963840, while the sum is 61.

The spelling of 2089277243665 in words is "two trillion, eighty-nine billion, two hundred seventy-seven million, two hundred forty-three thousand, six hundred sixty-five".