2170368388385 has 16 divisors (see below), whose sum is σ = 2605728508752. Its totient is φ = 1735437312000.

The previous prime is 2170368388339. The next prime is 2170368388429. The reversal of 2170368388385 is 5838838630712.

It can be written as a sum of positive squares in 8 ways, for example, as 24140458384 + 2146227930001 = 155372^2 + 1465001^2 .

It is not a de Polignac number, because 2170368388385 - 2²² = 2170364194081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118583735 + ... + 118602035.

It is an arithmetic number, because the mean of its divisors is an integer number (162858031797).

Almost surely, 2^{2170368388385} is an apocalyptic number.

It is an amenable number.

2170368388385 is a deficient number, since it is larger than the sum of its proper divisors (435360120367).

2170368388385 is a wasteful number, since it uses less digits than its factorization.

2170368388385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28724.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 2170368388385 in words is "two trillion, one hundred seventy billion, three hundred sixty-eight million, three hundred eighty-eight thousand, three hundred eighty-five".