4189795856669 has 4 divisors (see below), whose sum is σ = 4189809853020. Its totient is φ = 4189781860320.

The previous prime is 4189795856633. The next prime is 4189795856671. The reversal of 4189795856669 is 9666585979814.

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 3229072429444 + 960723427225 = 1796962^2 + 980165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4189795856669 is a prime.

It is a super-2 number, since 2×4189795856669² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4189795856569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539114 + ... + 7151195.

It is an arithmetic number, because the mean of its divisors is an integer number (1047452463255).

Almost surely, 2^{4189795856669} is an apocalyptic number.

It is an amenable number.

4189795856669 is a deficient number, since it is larger than the sum of its proper divisors (13996351).

4189795856669 is a wasteful number, since it uses less digits than its factorization.

4189795856669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996350.

The product of its digits is 7054387200, while the sum is 83.

The spelling of 4189795856669 in words is "four trillion, one hundred eighty-nine billion, seven hundred ninety-five million, eight hundred fifty-six thousand, six hundred sixty-nine".