6985357517 has 8 divisors (see below), whose sum is σ = 7107196800. Its totient is φ = 6864225120.

The previous prime is 6985357453. The next prime is 6985357537. The reversal of 6985357517 is 7157535896.

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 6985357517 - 2⁶ = 6985357453 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 (6985357537) 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, 156767 + ... + 196332.

It is an arithmetic number, because the mean of its divisors is an integer number (888399600).

Almost surely, 2^6985357517 is an apocalyptic number.

It is an amenable number.

6985357517 is a deficient number, since it is larger than the sum of its proper divisors (121839283).

6985357517 is a wasteful number, since it uses less digits than its factorization.

6985357517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353443.

The product of its digits is 7938000, while the sum is 56.

The square root of 6985357517 is about 83578.4512718440. The cubic root of 6985357517 is about 1911.5964391829.

The spelling of 6985357517 in words is "six billion, nine hundred eighty-five million, three hundred fifty-seven thousand, five hundred seventeen".