17212842186242 has 24 divisors (see below), whose sum is σ = 26434470745980. Its totient is φ = 8406018764640.

The previous prime is 17212842186229. The next prime is 17212842186307. The reversal of 17212842186242 is 24268124821271.

It can be written as a sum of positive squares in 2 ways, for example, as 13025739956161 + 4187102230081 = 3609119^2 + 2046241^2 .

It is a super-2 number, since 2×17212842186242² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200318384 + ... + 200404292.

Almost surely, 2^{17212842186242} is an apocalyptic number.

17212842186242 is a deficient number, since it is larger than the sum of its proper divisors (9221628559738).

17212842186242 is an equidigital number, since it uses as much as digits as its factorization.

17212842186242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140178 (or 140135 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 50.

The spelling of 17212842186242 in words is "seventeen trillion, two hundred twelve billion, eight hundred forty-two million, one hundred eighty-six thousand, two hundred forty-two".