4694065991 has 4 divisors (see below), whose sum is σ = 4735606512. Its totient is φ = 4652525472.

The previous prime is 4694065931. The next prime is 4694066009. The reversal of 4694065991 is 1995604964.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4694065991 - 2²² = 4689871687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4694065931) 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, 20770091 + ... + 20770316.

It is an arithmetic number, because the mean of its divisors is an integer number (1183901628).

Almost surely, 2^4694065991 is an apocalyptic number.

4694065991 is a deficient number, since it is larger than the sum of its proper divisors (41540521).

4694065991 is a wasteful number, since it uses less digits than its factorization.

4694065991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41540520.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 4694065991 is about 68513.2541264827. The cubic root of 4694065991 is about 1674.3634312056.

The spelling of 4694065991 in words is "four billion, six hundred ninety-four million, sixty-five thousand, nine hundred ninety-one".