4052067991 has 2 divisors, whose sum is σ = 4052067992. Its totient is φ = 4052067990.

The previous prime is 4052067983. The next prime is 4052068057. The reversal of 4052067991 is 1997602504.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4052067991 - 2³ = 4052067983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4052067911) 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 as a sum of consecutive naturals, namely, 2026033995 + 2026033996.

It is an arithmetic number, because the mean of its divisors is an integer number (2026033996).

Almost surely, 2^4052067991 is an apocalyptic number.

4052067991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4052067991 is an equidigital number, since it uses as much as digits as its factorization.

4052067991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 4052067991 is about 63655.8559050147. The cubic root of 4052067991 is about 1594.2591123450.

The spelling of 4052067991 in words is "four billion, fifty-two million, sixty-seven thousand, nine hundred ninety-one".