68170190533 has 8 divisors (see below), whose sum is σ = 69025397400. Its totient is φ = 67316967168.

The previous prime is 68170190531. The next prime is 68170190623. The reversal of 68170190533 is 33509107186.

It can be written as a sum of positive squares in 4 ways, for example, as 173369889 + 67996820644 = 13167^2 + 260762^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68170190533 - 2¹ = 68170190531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68170190533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68170190531) 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, 426648 + ... + 564241.

It is an arithmetic number, because the mean of its divisors is an integer number (8628174675).

Almost surely, 2^68170190533 is an apocalyptic number.

It is an amenable number.

68170190533 is a deficient number, since it is larger than the sum of its proper divisors (855206867).

68170190533 is an equidigital number, since it uses as much as digits as its factorization.

68170190533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991751.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 68170190533 in words is "sixty-eight billion, one hundred seventy million, one hundred ninety thousand, five hundred thirty-three".