42812159813 has 2 divisors, whose sum is σ = 42812159814. Its totient is φ = 42812159812.

The previous prime is 42812159807. The next prime is 42812159833. The reversal of 42812159813 is 31895121824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42752592289 + 59567524 = 206767^2 + 7718^2 .

It is a cyclic number.

It is not a de Polignac number, because 42812159813 - 2¹⁰ = 42812158789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42812159833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21406079906 + 21406079907.

It is an arithmetic number, because the mean of its divisors is an integer number (21406079907).

Almost surely, 2^42812159813 is an apocalyptic number.

It is an amenable number.

42812159813 is a deficient number, since it is larger than the sum of its proper divisors (1).

42812159813 is an equidigital number, since it uses as much as digits as its factorization.

42812159813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 44.

The spelling of 42812159813 in words is "forty-two billion, eight hundred twelve million, one hundred fifty-nine thousand, eight hundred thirteen".