40568364017 has 2 divisors, whose sum is σ = 40568364018. Its totient is φ = 40568364016.

The previous prime is 40568363963. The next prime is 40568364019. The reversal of 40568364017 is 71046386504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26413075441 + 14155288576 = 162521^2 + 118976^2 .

It is a cyclic number.

It is not a de Polignac number, because 40568364017 - 2¹⁰ = 40568362993 is a prime.

Together with 40568364019, 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 (40568364019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20284182008 + 20284182009.

It is an arithmetic number, because the mean of its divisors is an integer number (20284182009).

Almost surely, 2^40568364017 is an apocalyptic number.

It is an amenable number.

40568364017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40568364017 is an equidigital number, since it uses as much as digits as its factorization.

40568364017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 40568364017 in words is "forty billion, five hundred sixty-eight million, three hundred sixty-four thousand, seventeen".