42842804761 has 2 divisors, whose sum is σ = 42842804762. Its totient is φ = 42842804760.

The previous prime is 42842804723. The next prime is 42842804773. The reversal of 42842804761 is 16740824824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24046394761 + 18796410000 = 155069^2 + 137100^2 .

It is a cyclic number.

It is not a de Polignac number, because 42842804761 - 2¹¹ = 42842802713 is a prime.

It is not a weakly prime, because it can be changed into another prime (42842804561) 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, 21421402380 + 21421402381.

It is an arithmetic number, because the mean of its divisors is an integer number (21421402381).

Almost surely, 2^42842804761 is an apocalyptic number.

It is an amenable number.

42842804761 is a deficient number, since it is larger than the sum of its proper divisors (1).

42842804761 is an equidigital number, since it uses as much as digits as its factorization.

42842804761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688128, while the sum is 46.

It can be divided in two parts, 4284280 and 4761, that added together give a square (4289041 = 2071²).

The spelling of 42842804761 in words is "forty-two billion, eight hundred forty-two million, eight hundred four thousand, seven hundred sixty-one".