42195105171 has 64 divisors (see below), whose sum is σ = 66355200000. Its totient is φ = 26426230560.

The previous prime is 42195105151. The next prime is 42195105191. The reversal of 42195105171 is 17150159124.

42195105171 is a `hidden beast` number, since 4 + 21 + 9 + 510 + 51 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (42195105151) and next prime (42195105191).

It is not a de Polignac number, because 42195105171 - 2¹⁷ = 42194974099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42195105151) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 48893086 + ... + 48893948.

It is an arithmetic number, because the mean of its divisors is an integer number (1036800000).

Almost surely, 2^42195105171 is an apocalyptic number.

42195105171 is a deficient number, since it is larger than the sum of its proper divisors (24160094829).

42195105171 is a wasteful number, since it uses less digits than its factorization.

42195105171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 36.

The spelling of 42195105171 in words is "forty-two billion, one hundred ninety-five million, one hundred five thousand, one hundred seventy-one".