6818748805 has 8 divisors (see below), whose sum is σ = 8926362144. Its totient is φ = 4959090000.

The previous prime is 6818748791. The next prime is 6818748821. The reversal of 6818748805 is 5088478186.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6818748805 - 2¹¹ = 6818746757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 123977251 = 6818748805 / (6 + 8 + 1 + 8 + 7 + 4 + 8 + 8 + 0 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61988571 + ... + 61988680.

It is an arithmetic number, because the mean of its divisors is an integer number (1115795268).

Almost surely, 2^6818748805 is an apocalyptic number.

It is an amenable number.

6818748805 is a deficient number, since it is larger than the sum of its proper divisors (2107613339).

6818748805 is a wasteful number, since it uses less digits than its factorization.

6818748805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123977267.

The product of its (nonzero) digits is 3440640, while the sum is 55.

The square root of 6818748805 is about 82575.7155887855. The cubic root of 6818748805 is about 1896.2760674888.

The spelling of 6818748805 in words is "six billion, eight hundred eighteen million, seven hundred forty-eight thousand, eight hundred five".