51085583018 has 8 divisors (see below), whose sum is σ = 76635600960. Its totient is φ = 25540382700.

The previous prime is 51085583009. The next prime is 51085583047. The reversal of 51085583018 is 81038558015.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51085583018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177778 + ... + 1220381.

It is an arithmetic number, because the mean of its divisors is an integer number (9579450120).

Almost surely, 2^51085583018 is an apocalyptic number.

51085583018 is a deficient number, since it is larger than the sum of its proper divisors (25550017942).

51085583018 is a wasteful number, since it uses less digits than its factorization.

51085583018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408812.

The product of its (nonzero) digits is 192000, while the sum is 44.

The spelling of 51085583018 in words is "fifty-one billion, eighty-five million, five hundred eighty-three thousand, eighteen".