172873173146 has 8 divisors (see below), whose sum is σ = 259312446144. Its totient is φ = 86435691100.

The previous prime is 172873173131. The next prime is 172873173173. The reversal of 172873173146 is 641371378271.

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

It is a junction number, because it is equal to n+sod(n) for n = 172873173094 and 172873173103.

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, 172610 + ... + 612813.

It is an arithmetic number, because the mean of its divisors is an integer number (32414055768).

Almost surely, 2^172873173146 is an apocalyptic number.

172873173146 is a deficient number, since it is larger than the sum of its proper divisors (86439272998).

172873173146 is a wasteful number, since it uses less digits than its factorization.

172873173146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895476.

The product of its digits is 1185408, while the sum is 50.

The spelling of 172873173146 in words is "one hundred seventy-two billion, eight hundred seventy-three million, one hundred seventy-three thousand, one hundred forty-six".