4089364561 has 4 divisors (see below), whose sum is σ = 4089556800. Its totient is φ = 4089172324.

The previous prime is 4089364553. The next prime is 4089364577. The reversal of 4089364561 is 1654639804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4089364561 - 2³ = 4089364553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4089361561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59581 + ... + 108298.

It is an arithmetic number, because the mean of its divisors is an integer number (1022389200).

Almost surely, 2^4089364561 is an apocalyptic number.

It is an amenable number.

4089364561 is a deficient number, since it is larger than the sum of its proper divisors (192239).

4089364561 is a wasteful number, since it uses less digits than its factorization.

4089364561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192238.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 4089364561 is about 63948.1396211023. The cubic root of 4089364561 is about 1599.1355435779.

The spelling of 4089364561 in words is "four billion, eighty-nine million, three hundred sixty-four thousand, five hundred sixty-one".