43401404017 has 2 divisors, whose sum is σ = 43401404018. Its totient is φ = 43401404016.

The previous prime is 43401403987. The next prime is 43401404023. The reversal of 43401404017 is 71040410434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33166237456 + 10235166561 = 182116^2 + 101169^2 .

It is a cyclic number.

It is not a de Polignac number, because 43401404017 - 2³¹ = 41253920369 is a prime.

It is not a weakly prime, because it can be changed into another prime (43401104017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21700702008 + 21700702009.

It is an arithmetic number, because the mean of its divisors is an integer number (21700702009).

Almost surely, 2^43401404017 is an apocalyptic number.

It is an amenable number.

43401404017 is a deficient number, since it is larger than the sum of its proper divisors (1).

43401404017 is an equidigital number, since it uses as much as digits as its factorization.

43401404017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 43401404017 in words is "forty-three billion, four hundred one million, four hundred four thousand, seventeen".