42368720573 has 2 divisors, whose sum is σ = 42368720574. Its totient is φ = 42368720572.

The previous prime is 42368720567. The next prime is 42368720599. The reversal of 42368720573 is 37502786324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27842927044 + 14525793529 = 166862^2 + 120523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42368720573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42368770573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21184360286 + 21184360287.

It is an arithmetic number, because the mean of its divisors is an integer number (21184360287).

Almost surely, 2^42368720573 is an apocalyptic number.

It is an amenable number.

42368720573 is a deficient number, since it is larger than the sum of its proper divisors (1).

42368720573 is an equidigital number, since it uses as much as digits as its factorization.

42368720573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 42368720573 in words is "forty-two billion, three hundred sixty-eight million, seven hundred twenty thousand, five hundred seventy-three".