51684560086 has 8 divisors (see below), whose sum is σ = 77528343024. Its totient is φ = 25841779080.

The previous prime is 51684560033. The next prime is 51684560113. The reversal of 51684560086 is 68006548615.

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

It is a congruent number.

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, 104505 + ... + 338068.

It is an arithmetic number, because the mean of its divisors is an integer number (9691042878).

Almost surely, 2^51684560086 is an apocalyptic number.

51684560086 is a deficient number, since it is larger than the sum of its proper divisors (25843782938).

51684560086 is a wasteful number, since it uses less digits than its factorization.

51684560086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500966.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 51684560086 in words is "fifty-one billion, six hundred eighty-four million, five hundred sixty thousand, eighty-six".