43647108481 has 2 divisors, whose sum is σ = 43647108482. Its totient is φ = 43647108480.

The previous prime is 43647108469. The next prime is 43647108569. The reversal of 43647108481 is 18480174634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41775680881 + 1871427600 = 204391^2 + 43260^2 .

It is a cyclic number.

It is not a de Polignac number, because 43647108481 - 2¹⁵ = 43647075713 is a prime.

It is a super-2 number, since 2×43647108481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43647108451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21823554240 + 21823554241.

It is an arithmetic number, because the mean of its divisors is an integer number (21823554241).

Almost surely, 2^43647108481 is an apocalyptic number.

It is an amenable number.

43647108481 is a deficient number, since it is larger than the sum of its proper divisors (1).

43647108481 is an equidigital number, since it uses as much as digits as its factorization.

43647108481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 43647108481 in words is "forty-three billion, six hundred forty-seven million, one hundred eight thousand, four hundred eighty-one".