40501568212489 has 2 divisors, whose sum is σ = 40501568212490. Its totient is φ = 40501568212488.

The previous prime is 40501568212471. The next prime is 40501568212513. The reversal of 40501568212489 is 98421286510504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30577858575625 + 9923709636864 = 5529725^2 + 3150192^2 .

It is a cyclic number.

It is not a de Polignac number, because 40501568212489 - 2⁷ = 40501568212361 is a prime.

It is not a weakly prime, because it can be changed into another prime (40501568212409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20250784106244 + 20250784106245.

It is an arithmetic number, because the mean of its divisors is an integer number (20250784106245).

Almost surely, 2^{40501568212489} is an apocalyptic number.

It is an amenable number.

40501568212489 is a deficient number, since it is larger than the sum of its proper divisors (1).

40501568212489 is an equidigital number, since it uses as much as digits as its factorization.

40501568212489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 40501568212489 in words is "forty trillion, five hundred one billion, five hundred sixty-eight million, two hundred twelve thousand, four hundred eighty-nine".