6819080018 has 32 divisors (see below), whose sum is σ = 10990954800. Its totient is φ = 3161677824.

The previous prime is 6819079991. The next prime is 6819080029. The reversal of 6819080018 is 8100809186.

It can be written as a sum of positive squares in 8 ways, for example, as 6812356369 + 6723649 = 82537^2 + 2593^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750728 + ... + 759756.

Almost surely, 2^6819080018 is an apocalyptic number.

6819080018 is a deficient number, since it is larger than the sum of its proper divisors (4171874782).

6819080018 is a wasteful number, since it uses less digits than its factorization.

6819080018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9374.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 6819080018 is about 82577.7210753603. The cubic root of 6819080018 is about 1896.3067701458.

The spelling of 6819080018 in words is "six billion, eight hundred nineteen million, eighty thousand, eighteen".