68171190 has 32 divisors (see below), whose sum is σ = 173236320. Its totient is φ = 17109504.

The previous prime is 68171179. The next prime is 68171219. The reversal of 68171190 is 9117186.

It is a super-2 number, since 2×68171190² = 9294622292032200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66325 + ... + 67344.

It is an arithmetic number, because the mean of its divisors is an integer number (5413635).

Almost surely, 2^68171190 is an apocalyptic number.

68171190 is an abundant number, since it is smaller than the sum of its proper divisors (105065130).

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

68171190 is a wasteful number, since it uses less digits than its factorization.

68171190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133696.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 68171190 is about 8256.5846449970. The cubic root of 68171190 is about 408.5077420533.

The spelling of 68171190 in words is "sixty-eight million, one hundred seventy-one thousand, one hundred ninety".