172755843122 has 16 divisors (see below), whose sum is σ = 274833248832. Its totient is φ = 81267893520.

The previous prime is 172755843107. The next prime is 172755843149. The reversal of 172755843122 is 221348557271.

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, 30780488 + ... + 30786099.

It is an arithmetic number, because the mean of its divisors is an integer number (17177078052).

Almost surely, 2^172755843122 is an apocalyptic number.

172755843122 is a deficient number, since it is larger than the sum of its proper divisors (102077405710).

172755843122 is a wasteful number, since it uses less digits than its factorization.

172755843122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61566673.

The product of its digits is 940800, while the sum is 47.

The spelling of 172755843122 in words is "one hundred seventy-two billion, seven hundred fifty-five million, eight hundred forty-three thousand, one hundred twenty-two".