4052067985 has 24 divisors (see below), whose sum is σ = 5712394536. Its totient is φ = 2751033600.

The previous prime is 4052067983. The next prime is 4052067991. The reversal of 4052067985 is 5897602504.

It can be written as a sum of positive squares in 4 ways, for example, as 562448656 + 3489619329 = 23716^2 + 59073^2 .

It is not a de Polignac number, because 4052067985 - 2¹ = 4052067983 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4052067983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57132 + ... + 106621.

It is an arithmetic number, because the mean of its divisors is an integer number (238016439).

Almost surely, 2^4052067985 is an apocalyptic number.

It is an amenable number.

4052067985 is a deficient number, since it is larger than the sum of its proper divisors (1660326551).

4052067985 is a wasteful number, since it uses less digits than its factorization.

4052067985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163873 (or 163866 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 4052067985 is about 63655.8558578863. The cubic root of 4052067985 is about 1594.2591115581.

The spelling of 4052067985 in words is "four billion, fifty-two million, sixty-seven thousand, nine hundred eighty-five".