6899917243 has 8 divisors (see below), whose sum is σ = 7000256736. Its totient is φ = 6799665600.

The previous prime is 6899917229. The next prime is 6899917253. The reversal of 6899917243 is 3427199986.

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-6899917243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6899917253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145455 + ... + 186967.

It is an arithmetic number, because the mean of its divisors is an integer number (875032092).

Almost surely, 2^6899917243 is an apocalyptic number.

6899917243 is a deficient number, since it is larger than the sum of its proper divisors (100339493).

6899917243 is a wasteful number, since it uses less digits than its factorization.

6899917243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43925.

The product of its digits is 5878656, while the sum is 58.

The square root of 6899917243 is about 83065.7404890849. The cubic root of 6899917243 is about 1903.7706507745.

The spelling of 6899917243 in words is "six billion, eight hundred ninety-nine million, nine hundred seventeen thousand, two hundred forty-three".