68359989466 has 8 divisors (see below), whose sum is σ = 104474701044. Its totient is φ = 33535089120.

The previous prime is 68359989449. The next prime is 68359989487. The reversal of 68359989466 is 66498995386.

It can be written as a sum of positive squares in 2 ways, for example, as 58073770225 + 10286219241 = 240985^2 + 101421^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322452675 + ... + 322452886.

Almost surely, 2^68359989466 is an apocalyptic number.

68359989466 is a deficient number, since it is larger than the sum of its proper divisors (36114711578).

68359989466 is a wasteful number, since it uses less digits than its factorization.

68359989466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644905616.

The product of its digits is 604661760, while the sum is 73.

The spelling of 68359989466 in words is "sixty-eight billion, three hundred fifty-nine million, nine hundred eighty-nine thousand, four hundred sixty-six".