668035890539 has 8 divisors (see below), whose sum is σ = 674008088880. Its totient is φ = 662080352256.

The previous prime is 668035890523. The next prime is 668035890541. The reversal of 668035890539 is 935098530866.

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 668035890539 - 2⁴ = 668035890523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668035895539) 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, 4084454 + ... + 4244859.

It is an arithmetic number, because the mean of its divisors is an integer number (84251011110).

Almost surely, 2^668035890539 is an apocalyptic number.

668035890539 is a deficient number, since it is larger than the sum of its proper divisors (5972198341).

668035890539 is a wasteful number, since it uses less digits than its factorization.

668035890539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330029.

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 668035890539 in words is "six hundred sixty-eight billion, thirty-five million, eight hundred ninety thousand, five hundred thirty-nine".