4065945947 has 16 divisors (see below), whose sum is σ = 5053118400. Its totient is φ = 3191436288.

The previous prime is 4065945941. The next prime is 4065945953. The reversal of 4065945947 is 7495495604.

It is an interprime number because it is at equal distance from previous prime (4065945941) and next prime (4065945953).

It is a cyclic number.

It is not a de Polignac number, because 4065945947 - 2³⁰ = 2992204123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4065945941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457322 + ... + 466127.

It is an arithmetic number, because the mean of its divisors is an integer number (315819900).

Almost surely, 2^4065945947 is an apocalyptic number.

4065945947 is a deficient number, since it is larger than the sum of its proper divisors (987172453).

4065945947 is a wasteful number, since it uses less digits than its factorization.

4065945947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923510.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The square root of 4065945947 is about 63764.7704222324. The cubic root of 4065945947 is about 1596.0771015017.

The spelling of 4065945947 in words is "four billion, sixty-five million, nine hundred forty-five thousand, nine hundred forty-seven".