40641465017 has 2 divisors, whose sum is σ = 40641465018. Its totient is φ = 40641465016.

The previous prime is 40641464839. The next prime is 40641465019. The reversal of 40641465017 is 71056414604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29119374736 + 11522090281 = 170644^2 + 107341^2 .

It is a cyclic number.

It is not a de Polignac number, because 40641465017 - 2²⁴ = 40624687801 is a prime.

Together with 40641465019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40641465019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20320732508 + 20320732509.

It is an arithmetic number, because the mean of its divisors is an integer number (20320732509).

Almost surely, 2^40641465017 is an apocalyptic number.

It is an amenable number.

40641465017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40641465017 is an equidigital number, since it uses as much as digits as its factorization.

40641465017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 40641465017 in words is "forty billion, six hundred forty-one million, four hundred sixty-five thousand, seventeen".