43849448653 has 2 divisors, whose sum is σ = 43849448654. Its totient is φ = 43849448652.

The previous prime is 43849448639. The next prime is 43849448659. The reversal of 43849448653 is 35684494834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42996925449 + 852523204 = 207357^2 + 29198^2 .

It is a cyclic number.

It is not a de Polignac number, because 43849448653 - 2¹³ = 43849440461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43849448659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21924724326 + 21924724327.

It is an arithmetic number, because the mean of its divisors is an integer number (21924724327).

Almost surely, 2^43849448653 is an apocalyptic number.

It is an amenable number.

43849448653 is a deficient number, since it is larger than the sum of its proper divisors (1).

43849448653 is an equidigital number, since it uses as much as digits as its factorization.

43849448653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39813120, while the sum is 58.

The spelling of 43849448653 in words is "forty-three billion, eight hundred forty-nine million, four hundred forty-eight thousand, six hundred fifty-three".