173145742860 has 24 divisors (see below), whose sum is σ = 484808080176. Its totient is φ = 46172198080.

The previous prime is 173145742841. The next prime is 173145742909. The reversal of 173145742860 is 68247541371.

173145742860 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1442881131 + ... + 1442881250.

It is an arithmetic number, because the mean of its divisors is an integer number (20200336674).

Almost surely, 2^173145742860 is an apocalyptic number.

173145742860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173145742860 is an abundant number, since it is smaller than the sum of its proper divisors (311662337316).

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

173145742860 is a wasteful number, since it uses less digits than its factorization.

173145742860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885762393 (or 2885762391 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 173145742860 in words is "one hundred seventy-three billion, one hundred forty-five million, seven hundred forty-two thousand, eight hundred sixty".