6486428239056 has 50 divisors (see below), whose sum is σ = 18773605192562. Its totient is φ = 2162142745920.

The previous prime is 6486428239013. The next prime is 6486428239097. The reversal of 6486428239056 is 6509328246846.

It is a happy number.

6486428239056 is a `hidden beast` number, since 6 + 4 + 86 + 42 + 82 + 390 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6341331240000 + 145096999056 = 2518200^2 + 380916^2 .

It is a super-2 number, since 2×6486428239056² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6486428238984 and 6486428239002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2502478735 + ... + 2502481326.

Almost surely, 2^{6486428239056} is an apocalyptic number.

It is an amenable number.

6486428239056 is an abundant number, since it is smaller than the sum of its proper divisors (12287176953506).

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

6486428239056 is a wasteful number, since it uses less digits than its factorization.

6486428239056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004960081 (or 5004960066 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 63.

The spelling of 6486428239056 in words is "six trillion, four hundred eighty-six billion, four hundred twenty-eight million, two hundred thirty-nine thousand, fifty-six".