51000105518 has 8 divisors (see below), whose sum is σ = 77102522112. Its totient is φ = 25299264816.

The previous prime is 51000105517. The next prime is 51000105523. The reversal of 51000105518 is 81550100015.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51000105511) 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, 100393655 + ... + 100394162.

It is an arithmetic number, because the mean of its divisors is an integer number (9637815264).

Almost surely, 2^51000105518 is an apocalyptic number.

51000105518 is a deficient number, since it is larger than the sum of its proper divisors (26102416594).

51000105518 is a wasteful number, since it uses less digits than its factorization.

51000105518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200787946.

The product of its (nonzero) digits is 1000, while the sum is 26.

The spelling of 51000105518 in words is "fifty-one billion, one hundred five thousand, five hundred eighteen".