43652272849 has 2 divisors, whose sum is σ = 43652272850. Its totient is φ = 43652272848.

The previous prime is 43652272847. The next prime is 43652272871. The reversal of 43652272849 is 94827225634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25734576400 + 17917696449 = 160420^2 + 133857^2 .

It is a cyclic number.

It is not a de Polignac number, because 43652272849 - 2¹ = 43652272847 is a prime.

Together with 43652272847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43652272796 and 43652272805.

It is not a weakly prime, because it can be changed into another prime (43652272841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21826136424 + 21826136425.

It is an arithmetic number, because the mean of its divisors is an integer number (21826136425).

Almost surely, 2^43652272849 is an apocalyptic number.

It is an amenable number.

43652272849 is a deficient number, since it is larger than the sum of its proper divisors (1).

43652272849 is an equidigital number, since it uses as much as digits as its factorization.

43652272849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 52.

The spelling of 43652272849 in words is "forty-three billion, six hundred fifty-two million, two hundred seventy-two thousand, eight hundred forty-nine".