173453729472 has 42 divisors (see below), whose sum is σ = 497173799148. Its totient is φ = 57817909632.

The previous prime is 173453729461. The next prime is 173453729497. The reversal of 173453729472 is 274927354371.

173453729472 is a `hidden beast` number, since 1 + 7 + 34 + 537 + 2 + 9 + 4 + 72 = 666.

173453729472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×173453729472² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150566898 + ... + 150568049.

Almost surely, 2^173453729472 is an apocalyptic number.

173453729472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173453729472 is an abundant number, since it is smaller than the sum of its proper divisors (323720069676).

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

173453729472 is a wasteful number, since it uses less digits than its factorization.

173453729472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301134965 (or 301134952 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 54.

The spelling of 173453729472 in words is "one hundred seventy-three billion, four hundred fifty-three million, seven hundred twenty-nine thousand, four hundred seventy-two".