4349171861 has 4 divisors (see below), whose sum is σ = 4356267372. Its totient is φ = 4342076352.

The previous prime is 4349171851. The next prime is 4349171887. The reversal of 4349171861 is 1681719434.

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 711875761 + 3637296100 = 26681^2 + 60310^2 .

It is a cyclic number.

It is not a de Polignac number, because 4349171861 - 2²⁶ = 4282062997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4349171851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546836 + ... + 3548061.

It is an arithmetic number, because the mean of its divisors is an integer number (1089066843).

Almost surely, 2^4349171861 is an apocalyptic number.

It is an amenable number.

4349171861 is a deficient number, since it is larger than the sum of its proper divisors (7095511).

4349171861 is an equidigital number, since it uses as much as digits as its factorization.

4349171861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7095510.

The product of its digits is 145152, while the sum is 44.

The square root of 4349171861 is about 65948.2513869777. The cubic root of 4349171861 is about 1632.3083033470.

The spelling of 4349171861 in words is "four billion, three hundred forty-nine million, one hundred seventy-one thousand, eight hundred sixty-one".