6891869117 has 8 divisors (see below), whose sum is σ = 7885929600. Its totient is φ = 5900185584.

The previous prime is 6891869099. The next prime is 6891869123. The reversal of 6891869117 is 7119681986.

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 6891869117 - 2¹² = 6891865021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6891869177) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 588017 + ... + 599622.

It is an arithmetic number, because the mean of its divisors is an integer number (985741200).

Almost surely, 2^6891869117 is an apocalyptic number.

It is an amenable number.

6891869117 is a deficient number, since it is larger than the sum of its proper divisors (994060483).

6891869117 is a wasteful number, since it uses less digits than its factorization.

6891869117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188475.

The product of its digits is 1306368, while the sum is 56.

The square root of 6891869117 is about 83017.2820381395. The cubic root of 6891869117 is about 1903.0301710194.

It can be divided in two parts, 6891869 and 117, that added together give a palindrome (6891986).

The spelling of 6891869117 in words is "six billion, eight hundred ninety-one million, eight hundred sixty-nine thousand, one hundred seventeen".