3788775066689 has 8 divisors (see below), whose sum is σ = 3860494371432. Its totient is φ = 3717064391040.

The previous prime is 3788775066679. The next prime is 3788775066719. The reversal of 3788775066689 is 9866605778873.

It can be written as a sum of positive squares in 4 ways, for example, as 4407897664 + 3784367169025 = 66392^2 + 1945345^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3788775066689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3788775066619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267382 + ... + 3030479.

It is an arithmetic number, because the mean of its divisors is an integer number (482561796429).

Almost surely, 2^{3788775066689} is an apocalyptic number.

It is an amenable number.

3788775066689 is a deficient number, since it is larger than the sum of its proper divisors (71719304743).

3788775066689 is a wasteful number, since it uses less digits than its factorization.

3788775066689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314547.

The product of its (nonzero) digits is 5120962560, while the sum is 80.

The spelling of 3788775066689 in words is "three trillion, seven hundred eighty-eight billion, seven hundred seventy-five million, sixty-six thousand, six hundred eighty-nine".