171829309242 has 128 divisors (see below), whose sum is σ = 384090916608. Its totient is φ = 51016089600.

The previous prime is 171829309231. The next prime is 171829309273. The reversal of 171829309242 is 242903928171.

It is a super-2 number, since 2×171829309242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 171829309191 and 171829309200.

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 63 ways as a sum of consecutive naturals, for example, 18617833 + ... + 18627059.

It is an arithmetic number, because the mean of its divisors is an integer number (3000710286).

Almost surely, 2^171829309242 is an apocalyptic number.

171829309242 is an abundant number, since it is smaller than the sum of its proper divisors (212261607366).

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

171829309242 is a wasteful number, since it uses less digits than its factorization.

171829309242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 171829309242 in words is "one hundred seventy-one billion, eight hundred twenty-nine million, three hundred nine thousand, two hundred forty-two".