8636761647 has 48 divisors (see below), whose sum is σ = 13144604928. Its totient is φ = 5666371200.

The previous prime is 8636761633. The next prime is 8636761649. The reversal of 8636761647 is 7461676368.

It is not a de Polignac number, because 8636761647 - 2¹⁶ = 8636696111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8636761593 and 8636761602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8636761649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4145268 + ... + 4147350.

It is an arithmetic number, because the mean of its divisors is an integer number (273845936).

Almost surely, 2^8636761647 is an apocalyptic number.

8636761647 is a deficient number, since it is larger than the sum of its proper divisors (4507843281).

8636761647 is a wasteful number, since it uses less digits than its factorization.

8636761647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362 (or 2350 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 8636761647 is about 92934.1791108094. The cubic root of 8636761647 is about 2051.7147379696.

The spelling of 8636761647 in words is "eight billion, six hundred thirty-six million, seven hundred sixty-one thousand, six hundred forty-seven".