4020072071 has 2 divisors, whose sum is σ = 4020072072. Its totient is φ = 4020072070.

The previous prime is 4020072047. The next prime is 4020072109. The reversal of 4020072071 is 1702700204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4020072071 - 2²⁶ = 3952963207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020072031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010036035 + 2010036036.

It is an arithmetic number, because the mean of its divisors is an integer number (2010036036).

Almost surely, 2^4020072071 is an apocalyptic number.

4020072071 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020072071 is an equidigital number, since it uses as much as digits as its factorization.

4020072071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 4020072071 is about 63404.0382862164. The cubic root of 4020072071 is about 1590.0518252427.

Adding to 4020072071 its reverse (1702700204), we get a palindrome (5722772275).

The spelling of 4020072071 in words is "four billion, twenty million, seventy-two thousand, seventy-one".