43886385481 has 2 divisors, whose sum is σ = 43886385482. Its totient is φ = 43886385480.

The previous prime is 43886385469. The next prime is 43886385503. The reversal of 43886385481 is 18458368834.

It is a happy number.

43886385481 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 can be written as a sum of positive squares in only one way, i.e., 43883546256 + 2839225 = 209484^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 43886385481 - 2⁵ = 43886385449 is a prime.

It is a super-2 number, since 2×43886385481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43886185481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21943192740 + 21943192741.

It is an arithmetic number, because the mean of its divisors is an integer number (21943192741).

Almost surely, 2^43886385481 is an apocalyptic number.

It is an amenable number.

43886385481 is a deficient number, since it is larger than the sum of its proper divisors (1).

43886385481 is an equidigital number, since it uses as much as digits as its factorization.

43886385481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17694720, while the sum is 58.

The spelling of 43886385481 in words is "forty-three billion, eight hundred eighty-six million, three hundred eighty-five thousand, four hundred eighty-one".