8636861311064 has 48 divisors (see below), whose sum is σ = 18846803611800. Its totient is φ = 3699792394368.

The previous prime is 8636861311009. The next prime is 8636861311073. The reversal of 8636861311064 is 4601131686368.

It is a junction number, because it is equal to n+sod(n) for n = 8636861310997 and 8636861311015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4272794 + ... + 5960745.

Almost surely, 2^{8636861311064} is an apocalyptic number.

It is an amenable number.

8636861311064 is an abundant number, since it is smaller than the sum of its proper divisors (10209942300736).

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

8636861311064 is a wasteful number, since it uses less digits than its factorization.

8636861311064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235712 (or 10235701 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 8636861311064 in words is "eight trillion, six hundred thirty-six billion, eight hundred sixty-one million, three hundred eleven thousand, sixty-four".