9216632641 has 4 divisors (see below), whose sum is σ = 9230247252. Its totient is φ = 9203018032.

The previous prime is 9216632591. The next prime is 9216632653. The reversal of 9216632641 is 1462366129.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7747520400 + 1469112241 = 88020^2 + 38329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9216632641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9216632594 and 9216632603.

It is not an unprimeable number, because it can be changed into a prime (9216632681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806290 + ... + 6807643.

It is an arithmetic number, because the mean of its divisors is an integer number (2307561813).

Almost surely, 2^9216632641 is an apocalyptic number.

It is an amenable number.

9216632641 is a deficient number, since it is larger than the sum of its proper divisors (13614611).

9216632641 is a wasteful number, since it uses less digits than its factorization.

9216632641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614610.

The product of its digits is 93312, while the sum is 40.

The square root of 9216632641 is about 96003.2949486631. The cubic root of 9216632641 is about 2096.6410884724.

The spelling of 9216632641 in words is "nine billion, two hundred sixteen million, six hundred thirty-two thousand, six hundred forty-one".