526181407651668 has 48 divisors (see below), whose sum is σ = 1232260780794624. Its totient is φ = 174750487403520.

The previous prime is 526181407651609. The next prime is 526181407651703. The reversal of 526181407651668 is 866156704181625.

It is a junction number, because it is equal to n+sod(n) for n = 526181407651599 and 526181407651608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22270821 + ... + 39349107.

It is an arithmetic number, because the mean of its divisors is an integer number (25672099599888).

Almost surely, 2^{526181407651668} is an apocalyptic number.

It is an amenable number.

526181407651668 is an abundant number, since it is smaller than the sum of its proper divisors (706079373142956).

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

526181407651668 is a wasteful number, since it uses less digits than its factorization.

526181407651668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17087712 (or 17087710 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 66.

The spelling of 526181407651668 in words is "five hundred twenty-six trillion, one hundred eighty-one billion, four hundred seven million, six hundred fifty-one thousand, six hundred sixty-eight".