4320561641 has 12 divisors (see below), whose sum is σ = 4780517952. Its totient is φ = 3901755000.

The previous prime is 4320561613. The next prime is 4320561649. The reversal of 4320561641 is 1461650234.

It is not a de Polignac number, because 4320561641 - 2¹⁰ = 4320560617 is a prime.

It is a super-2 number, since 2×4320561641² = 37334505787361225762, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4320561598 and 4320561607.

It is not an unprimeable number, because it can be changed into a prime (4320561649) 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 11 ways as a sum of consecutive naturals, for example, 99965 + ... + 136506.

It is an arithmetic number, because the mean of its divisors is an integer number (398376496).

Almost surely, 2^4320561641 is an apocalyptic number.

It is an amenable number.

4320561641 is a deficient number, since it is larger than the sum of its proper divisors (459956311).

4320561641 is a wasteful number, since it uses less digits than its factorization.

4320561641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236644 (or 236633 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 4320561641 is about 65730.9793096071. The cubic root of 4320561641 is about 1628.7211469089.

The spelling of 4320561641 in words is "four billion, three hundred twenty million, five hundred sixty-one thousand, six hundred forty-one".