42174142172 has 12 divisors (see below), whose sum is σ = 75521138616. Its totient is φ = 20596674000.

The previous prime is 42174142163. The next prime is 42174142189. The reversal of 42174142172 is 27124147124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122599079 + ... + 122599422.

It is an arithmetic number, because the mean of its divisors is an integer number (6293428218).

Almost surely, 2^42174142172 is an apocalyptic number.

It is an amenable number.

42174142172 is a deficient number, since it is larger than the sum of its proper divisors (33346996444).

42174142172 is a wasteful number, since it uses less digits than its factorization.

42174142172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245198548 (or 245198546 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

Adding to 42174142172 its reverse (27124147124), we get a palindrome (69298289296).

The spelling of 42174142172 in words is "forty-two billion, one hundred seventy-four million, one hundred forty-two thousand, one hundred seventy-two".