4261339889 has 4 divisors (see below), whose sum is σ = 4261690356. Its totient is φ = 4260989424.

The previous prime is 4261339871. The next prime is 4261339909. The reversal of 4261339889 is 9889331624.

It is a happy number.

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 1401229489 + 2860110400 = 37433^2 + 53480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4261339889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4261339889.

It is not an unprimeable number, because it can be changed into a prime (4261336889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156314 + ... + 181539.

It is an arithmetic number, because the mean of its divisors is an integer number (1065422589).

Almost surely, 2^4261339889 is an apocalyptic number.

It is an amenable number.

4261339889 is a deficient number, since it is larger than the sum of its proper divisors (350467).

4261339889 is a wasteful number, since it uses less digits than its factorization.

4261339889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350466.

The product of its digits is 2239488, while the sum is 53.

The square root of 4261339889 is about 65278.9390921758. The cubic root of 4261339889 is about 1621.2452815298.

The spelling of 4261339889 in words is "four billion, two hundred sixty-one million, three hundred thirty-nine thousand, eight hundred eighty-nine".