173742171012 has 36 divisors (see below), whose sum is σ = 439922262780. Its totient is φ = 57816387072.

The previous prime is 173742170993. The next prime is 173742171023. The reversal of 173742171012 is 210171247371.

It can be written as a sum of positive squares in 2 ways, for example, as 142208935236 + 31533235776 = 377106^2 + 177576^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4047937 + ... + 4090632.

It is an arithmetic number, because the mean of its divisors is an integer number (12220062855).

Almost surely, 2^173742171012 is an apocalyptic number.

173742171012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173742171012 is an abundant number, since it is smaller than the sum of its proper divisors (266180091768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173742171012 is a wasteful number, since it uses less digits than its factorization.

173742171012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139172 (or 8139167 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The spelling of 173742171012 in words is "one hundred seventy-three billion, seven hundred forty-two million, one hundred seventy-one thousand, twelve".