4063391845 has 4 divisors (see below), whose sum is σ = 4876070220. Its totient is φ = 3250713472.

The previous prime is 4063391819. The next prime is 4063391923. The reversal of 4063391845 is 5481933604.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1499083524 + 2564308321 = 38718^2 + 50639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4063391845 is a prime.

It is a super-2 number, since 2×4063391845² = 33022306572025008050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406339180 + ... + 406339189.

It is an arithmetic number, because the mean of its divisors is an integer number (1219017555).

Almost surely, 2^4063391845 is an apocalyptic number.

It is an amenable number.

4063391845 is a deficient number, since it is larger than the sum of its proper divisors (812678375).

4063391845 is an equidigital number, since it uses as much as digits as its factorization.

4063391845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812678374.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 4063391845 is about 63744.7397437624. The cubic root of 4063391845 is about 1595.7428293418.

The spelling of 4063391845 in words is "four billion, sixty-three million, three hundred ninety-one thousand, eight hundred forty-five".