2197843708669 has 8 divisors (see below), whose sum is σ = 2513557275008. Its totient is φ = 1882564115760.

The previous prime is 2197843708657. The next prime is 2197843708759. The reversal of 2197843708669 is 9668073487912.

It is a happy number.

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 2197843708669 - 2²¹ = 2197841611517 is a prime.

It is a super-2 number, since 2×2197843708669² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2197843708598 and 2197843708607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197843703669) 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, 108482502 + ... + 108502759.

It is an arithmetic number, because the mean of its divisors is an integer number (314194659376).

Almost surely, 2^{2197843708669} is an apocalyptic number.

It is an amenable number.

2197843708669 is a deficient number, since it is larger than the sum of its proper divisors (315713566339).

2197843708669 is a wasteful number, since it uses less digits than its factorization.

2197843708669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216986715.

The product of its (nonzero) digits is 219469824, while the sum is 70.

The spelling of 2197843708669 in words is "two trillion, one hundred ninety-seven billion, eight hundred forty-three million, seven hundred eight thousand, six hundred sixty-nine".