8636961312 has 120 divisors (see below), whose sum is σ = 29029847616. Its totient is φ = 2467698048.

The previous prime is 8636961253. The next prime is 8636961323. The reversal of 8636961312 is 2131696368.

8636961312 is a `hidden beast` number, since 8 + 636 + 9 + 6 + 1 + 3 + 1 + 2 = 666.

It is a super-2 number, since 2×8636961312² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219868 + ... + 256155.

Almost surely, 2^8636961312 is an apocalyptic number.

It is an amenable number.

8636961312 is an abundant number, since it is smaller than the sum of its proper divisors (20392886304).

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

8636961312 is a wasteful number, since it uses less digits than its factorization.

8636961312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476052 (or 476035 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 8636961312 is about 92935.2533326294. The cubic root of 8636961312 is about 2051.7305483888.

The spelling of 8636961312 in words is "eight billion, six hundred thirty-six million, nine hundred sixty-one thousand, three hundred twelve".