171842256026 has 16 divisors (see below), whose sum is σ = 302548528896. Its totient is φ = 71656230096.

The previous prime is 171842256023. The next prime is 171842256071. The reversal of 171842256026 is 620652248171.

It is a super-2 number, since 2×171842256026² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (171842256023) 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, 165870386 + ... + 165871421.

It is an arithmetic number, because the mean of its divisors is an integer number (18909283056).

Almost surely, 2^171842256026 is an apocalyptic number.

171842256026 is a deficient number, since it is larger than the sum of its proper divisors (130706272870).

171842256026 is a wasteful number, since it uses less digits than its factorization.

171842256026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331741853.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 171842256026 in words is "one hundred seventy-one billion, eight hundred forty-two million, two hundred fifty-six thousand, twenty-six".