43621752271 has 2 divisors, whose sum is σ = 43621752272. Its totient is φ = 43621752270.

The previous prime is 43621752263. The next prime is 43621752299. The reversal of 43621752271 is 17225712634.

43621752271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43621752271 - 2³ = 43621752263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43621752211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21810876135 + 21810876136.

It is an arithmetic number, because the mean of its divisors is an integer number (21810876136).

Almost surely, 2^43621752271 is an apocalyptic number.

43621752271 is a deficient number, since it is larger than the sum of its proper divisors (1).

43621752271 is an equidigital number, since it uses as much as digits as its factorization.

43621752271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The spelling of 43621752271 in words is "forty-three billion, six hundred twenty-one million, seven hundred fifty-two thousand, two hundred seventy-one".