8632816081 has 8 divisors (see below), whose sum is σ = 8692696904. Its totient is φ = 8573091840.

The previous prime is 8632816063. The next prime is 8632816091. The reversal of 8632816081 is 1806182368.

It can be written as a sum of positive squares in 4 ways, for example, as 1136027025 + 7496789056 = 33705^2 + 86584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8632816081 - 2³¹ = 6485332433 is a prime.

It is a super-2 number, since 2×8632816081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8632816001) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 72601 + ... + 150121.

It is an arithmetic number, because the mean of its divisors is an integer number (1086587113).

Almost surely, 2^8632816081 is an apocalyptic number.

It is an amenable number.

8632816081 is a deficient number, since it is larger than the sum of its proper divisors (59880823).

8632816081 is a wasteful number, since it uses less digits than its factorization.

8632816081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78291.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 8632816081 is about 92912.9489414689. The cubic root of 8632816081 is about 2051.4022593936.

The spelling of 8632816081 in words is "eight billion, six hundred thirty-two million, eight hundred sixteen thousand, eighty-one".