43648116349 has 2 divisors, whose sum is σ = 43648116350. Its totient is φ = 43648116348.

The previous prime is 43648116307. The next prime is 43648116353. The reversal of 43648116349 is 94361184634.

43648116349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43246113849 + 402002500 = 207957^2 + 20050^2 .

It is a cyclic number.

It is not a de Polignac number, because 43648116349 - 2¹⁵ = 43648083581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43648116359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21824058174 + 21824058175.

It is an arithmetic number, because the mean of its divisors is an integer number (21824058175).

Almost surely, 2^43648116349 is an apocalyptic number.

It is an amenable number.

43648116349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43648116349 is an equidigital number, since it uses as much as digits as its factorization.

43648116349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 49.

The spelling of 43648116349 in words is "forty-three billion, six hundred forty-eight million, one hundred sixteen thousand, three hundred forty-nine".