8636581472 has 12 divisors (see below), whose sum is σ = 17003269836. Its totient is φ = 4318290720.

The previous prime is 8636581463. The next prime is 8636581573. The reversal of 8636581472 is 2741856368.

It is a self number, because there is not a number n which added to its sum of digits gives 8636581472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134946554 + ... + 134946617.

It is an arithmetic number, because the mean of its divisors is an integer number (1416939153).

Almost surely, 2^8636581472 is an apocalyptic number.

It is an amenable number.

8636581472 is a deficient number, since it is larger than the sum of its proper divisors (8366688364).

8636581472 is a wasteful number, since it uses less digits than its factorization.

8636581472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269893181 (or 269893173 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 8636581472 is about 92933.2097368858. The cubic root of 8636581472 is about 2051.7004706516.

The spelling of 8636581472 in words is "eight billion, six hundred thirty-six million, five hundred eighty-one thousand, four hundred seventy-two".