173742513457 has 8 divisors (see below), whose sum is σ = 175446984960. Its totient is φ = 172038381600.

The previous prime is 173742513401. The next prime is 173742513491. The reversal of 173742513457 is 754315247371.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173742513457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 173742513457.

It is not an unprimeable number, because it can be changed into a prime (173742513557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012344 + ... + 1171462.

It is an arithmetic number, because the mean of its divisors is an integer number (21930873120).

Almost surely, 2^173742513457 is an apocalyptic number.

It is an amenable number.

173742513457 is a deficient number, since it is larger than the sum of its proper divisors (1704471503).

173742513457 is a wasteful number, since it uses less digits than its factorization.

173742513457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169823.

The product of its digits is 2469600, while the sum is 49.

The spelling of 173742513457 in words is "one hundred seventy-three billion, seven hundred forty-two million, five hundred thirteen thousand, four hundred fifty-seven".