171342147949 has 8 divisors (see below), whose sum is σ = 195861539520. Its totient is φ = 146833241856.

The previous prime is 171342147937. The next prime is 171342147959. The reversal of 171342147949 is 949741243171.

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

It is not a de Polignac number, because 171342147949 - 2⁹ = 171342147437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171342147896 and 171342147905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171342147959) 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, 2586319 + ... + 2651740.

It is an arithmetic number, because the mean of its divisors is an integer number (24482692440).

Almost surely, 2^171342147949 is an apocalyptic number.

It is an amenable number.

171342147949 is a deficient number, since it is larger than the sum of its proper divisors (24519391571).

171342147949 is an equidigital number, since it uses as much as digits as its factorization.

171342147949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242739.

The product of its digits is 1524096, while the sum is 52.

The spelling of 171342147949 in words is "one hundred seventy-one billion, three hundred forty-two million, one hundred forty-seven thousand, nine hundred forty-nine".