6818690071 has 4 divisors (see below), whose sum is σ = 6872380672. Its totient is φ = 6764999472.

The previous prime is 6818690069. The next prime is 6818690093. The reversal of 6818690071 is 1700968186.

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

It is a cyclic number.

It is not a de Polignac number, because 6818690071 - 2¹ = 6818690069 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 (6818690051) 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, 26845110 + ... + 26845363.

It is an arithmetic number, because the mean of its divisors is an integer number (1718095168).

Almost surely, 2^6818690071 is an apocalyptic number.

6818690071 is a deficient number, since it is larger than the sum of its proper divisors (53690601).

6818690071 is a wasteful number, since it uses less digits than its factorization.

6818690071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53690600.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 6818690071 is about 82575.3599507747. The cubic root of 6818690071 is about 1896.2706228830.

The spelling of 6818690071 in words is "six billion, eight hundred eighteen million, six hundred ninety thousand, seventy-one".