42564947363 has 2 divisors, whose sum is σ = 42564947364. Its totient is φ = 42564947362.

The previous prime is 42564947351. The next prime is 42564947387. The reversal of 42564947363 is 36374946524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42564947363 - 2²⁰ = 42563898787 is a prime.

It is not a weakly prime, because it can be changed into another prime (42564947323) 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, 21282473681 + 21282473682.

It is an arithmetic number, because the mean of its divisors is an integer number (21282473682).

Almost surely, 2^42564947363 is an apocalyptic number.

42564947363 is a deficient number, since it is larger than the sum of its proper divisors (1).

42564947363 is an equidigital number, since it uses as much as digits as its factorization.

42564947363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 53.

The spelling of 42564947363 in words is "forty-two billion, five hundred sixty-four million, nine hundred forty-seven thousand, three hundred sixty-three".