51685642714 has 8 divisors (see below), whose sum is σ = 77544633600. Its totient is φ = 25837431516.

The previous prime is 51685642693. The next prime is 51685642733. The reversal of 51685642714 is 41724658615.

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

It is a super-2 number, since 2×51685642714² (a number of 22 digits) contains 22 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, 2682924 + ... + 2702119.

It is an arithmetic number, because the mean of its divisors is an integer number (9693079200).

Almost surely, 2^51685642714 is an apocalyptic number.

51685642714 is a deficient number, since it is larger than the sum of its proper divisors (25858990886).

51685642714 is a wasteful number, since it uses less digits than its factorization.

51685642714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389844.

The product of its digits is 1612800, while the sum is 49.

The spelling of 51685642714 in words is "fifty-one billion, six hundred eighty-five million, six hundred forty-two thousand, seven hundred fourteen".