4321065091 has 32 divisors (see below), whose sum is σ = 5146416000. Its totient is φ = 3551081472.

The previous prime is 4321065043. The next prime is 4321065109. The reversal of 4321065091 is 1905601234.

It is a cyclic number.

It is not a de Polignac number, because 4321065091 - 2¹⁵ = 4321032323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4321065011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7593855 + ... + 7594423.

It is an arithmetic number, because the mean of its divisors is an integer number (160825500).

Almost surely, 2^4321065091 is an apocalyptic number.

4321065091 is a deficient number, since it is larger than the sum of its proper divisors (825350909).

4321065091 is a wasteful number, since it uses less digits than its factorization.

4321065091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 4321065091 is about 65734.8088230277. The cubic root of 4321065091 is about 1628.7844062628.

The spelling of 4321065091 in words is "four billion, three hundred twenty-one million, sixty-five thousand, ninety-one".