4065934109 has 4 divisors (see below), whose sum is σ = 4077584700. Its totient is φ = 4054283520.

The previous prime is 4065934097. The next prime is 4065934111. The reversal of 4065934109 is 9014395604.

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 2312167225 + 1753766884 = 48085^2 + 41878^2 .

It is a cyclic number.

It is not a de Polignac number, because 4065934109 - 2¹² = 4065930013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065934129) 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, 5824772 + ... + 5825469.

It is an arithmetic number, because the mean of its divisors is an integer number (1019396175).

Almost surely, 2^4065934109 is an apocalyptic number.

It is an amenable number.

4065934109 is a deficient number, since it is larger than the sum of its proper divisors (11650591).

4065934109 is a wasteful number, since it uses less digits than its factorization.

4065934109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11650590.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 4065934109 is about 63764.6775966130. The cubic root of 4065934109 is about 1596.0755525076.

The spelling of 4065934109 in words is "four billion, sixty-five million, nine hundred thirty-four thousand, one hundred nine".