4042928161 has 2 divisors, whose sum is σ = 4042928162. Its totient is φ = 4042928160.

The previous prime is 4042928119. The next prime is 4042928177. The reversal of 4042928161 is 1618292404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3239772561 + 803155600 = 56919^2 + 28340^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042928161 - 2¹⁷ = 4042797089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4042928161.

It is not a weakly prime, because it can be changed into another prime (4042928191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021464080 + 2021464081.

It is an arithmetic number, because the mean of its divisors is an integer number (2021464081).

Almost surely, 2^4042928161 is an apocalyptic number.

It is an amenable number.

4042928161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042928161 is an equidigital number, since it uses as much as digits as its factorization.

4042928161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 4042928161 is about 63584.0244165152. The cubic root of 4042928161 is about 1593.0595416016.

The spelling of 4042928161 in words is "four billion, forty-two million, nine hundred twenty-eight thousand, one hundred sixty-one".