4439653549 has 2 divisors, whose sum is σ = 4439653550. Its totient is φ = 4439653548.

The previous prime is 4439653541. The next prime is 4439653567. The reversal of 4439653549 is 9453569344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2849637924 + 1590015625 = 53382^2 + 39875^2 .

It is a cyclic number.

It is not a de Polignac number, because 4439653549 - 2³ = 4439653541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4439653496 and 4439653505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4439653541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2219826774 + 2219826775.

It is an arithmetic number, because the mean of its divisors is an integer number (2219826775).

Almost surely, 2^4439653549 is an apocalyptic number.

It is an amenable number.

4439653549 is a deficient number, since it is larger than the sum of its proper divisors (1).

4439653549 is an equidigital number, since it uses as much as digits as its factorization.

4439653549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 52.

The square root of 4439653549 is about 66630.7252624493. The cubic root of 4439653549 is about 1643.5504022770.

The spelling of 4439653549 in words is "four billion, four hundred thirty-nine million, six hundred fifty-three thousand, five hundred forty-nine".