171042424449 has 8 divisors (see below), whose sum is σ = 245599378752. Its totient is φ = 105256876560.

The previous prime is 171042424447. The next prime is 171042424471. The reversal of 171042424449 is 944424240171.

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

It is not a de Polignac number, because 171042424449 - 2¹ = 171042424447 is a prime.

It is a super-2 number, since 2×171042424449² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 171042424449.

It is not an unprimeable number, because it can be changed into a prime (171042424447) 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, 2192851557 + ... + 2192851634.

It is an arithmetic number, because the mean of its divisors is an integer number (30699922344).

Almost surely, 2^171042424449 is an apocalyptic number.

It is an amenable number.

171042424449 is a deficient number, since it is larger than the sum of its proper divisors (74556954303).

171042424449 is a wasteful number, since it uses less digits than its factorization.

171042424449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385703207.

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 171042424449 in words is "one hundred seventy-one billion, forty-two million, four hundred twenty-four thousand, four hundred forty-nine".