8136861056 has 16 divisors (see below), whose sum is σ = 16210153140. Its totient is φ = 4068430464.

The previous prime is 8136861037. The next prime is 8136861071. The reversal of 8136861056 is 6501686318.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 8136860998 and 8136861016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31784486 + ... + 31784741.

Almost surely, 2^8136861056 is an apocalyptic number.

It is an amenable number.

8136861056 is a deficient number, since it is larger than the sum of its proper divisors (8073292084).

8136861056 is an equidigital number, since it uses as much as digits as its factorization.

8136861056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63569241 (or 63569229 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 8136861056 is about 90204.5511933849. The cubic root of 8136861056 is about 2011.3406611581.

The spelling of 8136861056 in words is "eight billion, one hundred thirty-six million, eight hundred sixty-one thousand, fifty-six".