4381759849 has 2 divisors, whose sum is σ = 4381759850. Its totient is φ = 4381759848.

The previous prime is 4381759847. The next prime is 4381759853. The reversal of 4381759849 is 9489571834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3053667600 + 1328092249 = 55260^2 + 36443^2 .

It is a cyclic number.

It is not a de Polignac number, because 4381759849 - 2¹ = 4381759847 is a prime.

Together with 4381759847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4381759793 and 4381759802.

It is not a weakly prime, because it can be changed into another prime (4381759847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2190879924 + 2190879925.

It is an arithmetic number, because the mean of its divisors is an integer number (2190879925).

Almost surely, 2^4381759849 is an apocalyptic number.

It is an amenable number.

4381759849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4381759849 is an equidigital number, since it uses as much as digits as its factorization.

4381759849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The square root of 4381759849 is about 66194.8627085214. The cubic root of 4381759849 is about 1636.3750802622.

The spelling of 4381759849 in words is "four billion, three hundred eighty-one million, seven hundred fifty-nine thousand, eight hundred forty-nine".