6805218148 has 12 divisors (see below), whose sum is σ = 11924786412. Its totient is φ = 3398136320.

The previous prime is 6805218131. The next prime is 6805218157. The reversal of 6805218148 is 8418125086.

It can be written as a sum of positive squares in 2 ways, for example, as 2958489664 + 3846728484 = 54392^2 + 62022^2 .

It is a super-3 number, since 3×6805218148³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114765 + ... + 1120852.

It is an arithmetic number, because the mean of its divisors is an integer number (993732201).

Almost surely, 2^6805218148 is an apocalyptic number.

It is an amenable number.

6805218148 is a deficient number, since it is larger than the sum of its proper divisors (5119568264).

6805218148 is a wasteful number, since it uses less digits than its factorization.

6805218148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236382 (or 2236380 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 43.

The square root of 6805218148 is about 82493.7461144783. The cubic root of 6805218148 is about 1895.0209569230.

The spelling of 6805218148 in words is "six billion, eight hundred five million, two hundred eighteen thousand, one hundred forty-eight".