42172170302 has 16 divisors (see below), whose sum is σ = 63395129952. Its totient is φ = 21040508160.

The previous prime is 42172170277. The next prime is 42172170323. The reversal of 42172170302 is 20307127124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916402 + ... + 1938282.

It is an arithmetic number, because the mean of its divisors is an integer number (3962195622).

Almost surely, 2^42172170302 is an apocalyptic number.

42172170302 is a deficient number, since it is larger than the sum of its proper divisors (21222959650).

42172170302 is a wasteful number, since it uses less digits than its factorization.

42172170302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23923.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 42172170302 its reverse (20307127124), we get a palindrome (62479297426).

The spelling of 42172170302 in words is "forty-two billion, one hundred seventy-two million, one hundred seventy thousand, three hundred two".