172238741422642 has 8 divisors (see below), whose sum is σ = 261628467984000. Its totient is φ = 85029252094644.

The previous prime is 172238741422609. The next prime is 172238741422711. The reversal of 172238741422642 is 246224147832271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545059308142 + ... + 545059308457.

It is an arithmetic number, because the mean of its divisors is an integer number (32703558498000).

Almost surely, 2^{172238741422642} is an apocalyptic number.

172238741422642 is a deficient number, since it is larger than the sum of its proper divisors (89389726561358).

172238741422642 is a wasteful number, since it uses less digits than its factorization.

172238741422642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090118616680.

The product of its digits is 14450688, while the sum is 55.

The spelling of 172238741422642 in words is "one hundred seventy-two trillion, two hundred thirty-eight billion, seven hundred forty-one million, four hundred twenty-two thousand, six hundred forty-two".