667846233389 has 4 divisors (see below), whose sum is σ = 667852415424. Its totient is φ = 667840051356.

The previous prime is 667846233349. The next prime is 667846233403. The reversal of 667846233389 is 983332648766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667846233389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667846233349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926037 + ... + 3146010.

It is an arithmetic number, because the mean of its divisors is an integer number (166963103856).

Almost surely, 2^667846233389 is an apocalyptic number.

It is an amenable number.

667846233389 is a deficient number, since it is larger than the sum of its proper divisors (6182035).

667846233389 is a wasteful number, since it uses less digits than its factorization.

667846233389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182034.

The product of its digits is 188116992, while the sum is 65.

The spelling of 667846233389 in words is "six hundred sixty-seven billion, eight hundred forty-six million, two hundred thirty-three thousand, three hundred eighty-nine".