42215234357171 has 4 divisors (see below), whose sum is σ = 42215752207392. Its totient is φ = 42214716506952.

The previous prime is 42215234357141. The next prime is 42215234357203. The reversal of 42215234357171 is 17175343251224.

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

It is a cyclic number.

It is not a de Polignac number, because 42215234357171 - 2²⁶ = 42215167248307 is a prime.

It is a super-3 number, since 3×42215234357171³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42215234357141) 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, 258802811 + ... + 258965876.

It is an arithmetic number, because the mean of its divisors is an integer number (10553938051848).

Almost surely, 2^{42215234357171} is an apocalyptic number.

42215234357171 is a deficient number, since it is larger than the sum of its proper divisors (517850221).

42215234357171 is an equidigital number, since it uses as much as digits as its factorization.

42215234357171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517850220.

The product of its digits is 1411200, while the sum is 47.

The spelling of 42215234357171 in words is "forty-two trillion, two hundred fifteen billion, two hundred thirty-four million, three hundred fifty-seven thousand, one hundred seventy-one".