42065321275 has 24 divisors (see below), whose sum is σ = 53638910640. Its totient is φ = 32701080960.

The previous prime is 42065321269. The next prime is 42065321279. The reversal of 42065321275 is 57212356024.

It is not a de Polignac number, because 42065321275 - 2⁹ = 42065320763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (42065321279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 708696 + ... + 765754.

It is an arithmetic number, because the mean of its divisors is an integer number (2234954610).

Almost surely, 2^42065321275 is an apocalyptic number.

42065321275 is a deficient number, since it is larger than the sum of its proper divisors (11573589365).

42065321275 is a wasteful number, since it uses less digits than its factorization.

42065321275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57903 (or 57898 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 42065321275 its reverse (57212356024), we get a palindrome (99277677299).

The spelling of 42065321275 in words is "forty-two billion, sixty-five million, three hundred twenty-one thousand, two hundred seventy-five".