4459881749 has 4 divisors (see below), whose sum is σ = 4460281164. Its totient is φ = 4459482336.

The previous prime is 4459881739. The next prime is 4459881757. The reversal of 4459881749 is 9471889544.

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 2661528100 + 1798353649 = 51590^2 + 42407^2 .

It is a cyclic number.

It is not a de Polignac number, because 4459881749 - 2¹⁶ = 4459816213 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 (4459881719) 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, 182462 + ... + 205455.

It is an arithmetic number, because the mean of its divisors is an integer number (1115070291).

Almost surely, 2^4459881749 is an apocalyptic number.

It is an amenable number.

4459881749 is a deficient number, since it is larger than the sum of its proper divisors (399415).

4459881749 is a wasteful number, since it uses less digits than its factorization.

4459881749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399414.

The product of its digits is 11612160, while the sum is 59.

The square root of 4459881749 is about 66782.3460878697. The cubic root of 4459881749 is about 1646.0427665099.

The spelling of 4459881749 in words is "four billion, four hundred fifty-nine million, eight hundred eighty-one thousand, seven hundred forty-nine".