51110685636860 has 12 divisors (see below), whose sum is σ = 107332439837448. Its totient is φ = 20444274254736.

The previous prime is 51110685636833. The next prime is 51110685636893. The reversal of 51110685636860 is 6863658601115.

It is a super-2 number, since 2×51110685636860² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51110685636796 and 51110685636805.

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, 1277767140902 + ... + 1277767140941.

It is an arithmetic number, because the mean of its divisors is an integer number (8944369986454).

Almost surely, 2^{51110685636860} is an apocalyptic number.

It is an amenable number.

51110685636860 is an abundant number, since it is smaller than the sum of its proper divisors (56221754200588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51110685636860 is a wasteful number, since it uses less digits than its factorization.

51110685636860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555534281852 (or 2555534281850 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 51110685636860 in words is "fifty-one trillion, one hundred ten billion, six hundred eighty-five million, six hundred thirty-six thousand, eight hundred sixty".