42810173573 has 4 divisors (see below), whose sum is σ = 42810709548. Its totient is φ = 42809637600.

The previous prime is 42810173557. The next prime is 42810173591. The reversal of 42810173573 is 37537101824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22344868324 + 20465305249 = 149482^2 + 143057^2 .

It is a cyclic number.

It is not a de Polignac number, because 42810173573 - 2⁴ = 42810173557 is a prime.

It is a super-2 number, since 2×42810173573² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42810173573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42810173173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121478 + ... + 316823.

It is an arithmetic number, because the mean of its divisors is an integer number (10702677387).

Almost surely, 2^42810173573 is an apocalyptic number.

It is an amenable number.

42810173573 is a deficient number, since it is larger than the sum of its proper divisors (535975).

42810173573 is an equidigital number, since it uses as much as digits as its factorization.

42810173573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535974.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 42810173573 in words is "forty-two billion, eight hundred ten million, one hundred seventy-three thousand, five hundred seventy-three".