2193656869 has 8 divisors (see below), whose sum is σ = 2199038912. Its totient is φ = 2188283040.

The previous prime is 2193656827. The next prime is 2193656887. The reversal of 2193656869 is 9686563912.

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 2193656869 - 2⁹ = 2193656357 is a prime.

It is a super-2 number, since 2×2193656869² = 9624260917821766322, which 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 (2193656819) 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, 1250497 + ... + 1252249.

It is an arithmetic number, because the mean of its divisors is an integer number (274879864).

Almost surely, 2^2193656869 is an apocalyptic number.

It is an amenable number.

2193656869 is a deficient number, since it is larger than the sum of its proper divisors (5382043).

2193656869 is a wasteful number, since it uses less digits than its factorization.

2193656869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4107.

The product of its digits is 4199040, while the sum is 55.

The square root of 2193656869 is about 46836.4907844300. The cubic root of 2193656869 is about 1299.3402705798.

The spelling of 2193656869 in words is "two billion, one hundred ninety-three million, six hundred fifty-six thousand, eight hundred sixty-nine".