6855485743 has 4 divisors (see below), whose sum is σ = 7014915688. Its totient is φ = 6696055800.

The previous prime is 6855485719. The next prime is 6855485783. The reversal of 6855485743 is 3475845586.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6855485743 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 (6855485783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79714908 + ... + 79714993.

It is an arithmetic number, because the mean of its divisors is an integer number (1753728922).

Almost surely, 2^6855485743 is an apocalyptic number.

6855485743 is a deficient number, since it is larger than the sum of its proper divisors (159429945).

6855485743 is a wasteful number, since it uses less digits than its factorization.

6855485743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159429944.

The product of its digits is 16128000, while the sum is 55.

The square root of 6855485743 is about 82797.8607392727. The cubic root of 6855485743 is about 1899.6754517677.

The spelling of 6855485743 in words is "six billion, eight hundred fifty-five million, four hundred eighty-five thousand, seven hundred forty-three".