42720207175 has 12 divisors (see below), whose sum is σ = 52975671840. Its totient is φ = 34174478720.

The previous prime is 42720207163. The next prime is 42720207209. The reversal of 42720207175 is 57170202724.

It is not a de Polignac number, because 42720207175 - 2⁹ = 42720206663 is a prime.

It is a super-2 number, since 2×42720207175² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 819954 + ... + 870496.

It is an arithmetic number, because the mean of its divisors is an integer number (4414639320).

Almost surely, 2^42720207175 is an apocalyptic number.

42720207175 is a deficient number, since it is larger than the sum of its proper divisors (10255464665).

42720207175 is a wasteful number, since it uses less digits than its factorization.

42720207175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84362 (or 84357 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 37.

Adding to 42720207175 its reverse (57170202724), we get a palindrome (99890409899).

The spelling of 42720207175 in words is "forty-two billion, seven hundred twenty million, two hundred seven thousand, one hundred seventy-five".