6855717401 has 8 divisors (see below), whose sum is σ = 7484219400. Its totient is φ = 6241663872.

The previous prime is 6855717397. The next prime is 6855717419. The reversal of 6855717401 is 1047175586.

It can be written as a sum of positive squares in 4 ways, for example, as 38738176 + 6816979225 = 6224^2 + 82565^2 .

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 6855717401 - 2² = 6855717397 is a prime.

It is a super-2 number, since 2×6855717401² = 94001722164748389602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6855717431) 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, 3611126 + ... + 3613023.

It is an arithmetic number, because the mean of its divisors is an integer number (935527425).

Almost surely, 2^6855717401 is an apocalyptic number.

It is an amenable number.

6855717401 is a deficient number, since it is larger than the sum of its proper divisors (628501999).

6855717401 is a wasteful number, since it uses less digits than its factorization.

6855717401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224235.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 6855717401 is about 82799.2596645646. The cubic root of 6855717401 is about 1899.6968492332.

It can be divided in two parts, 68557 and 17401, that added together give a palindrome (85958).

The spelling of 6855717401 in words is "six billion, eight hundred fifty-five million, seven hundred seventeen thousand, four hundred one".