671856602113 has 8 divisors (see below), whose sum is σ = 688446452736. Its totient is φ = 655276423200.

The previous prime is 671856602107. The next prime is 671856602141. The reversal of 671856602113 is 311206658176.

It is a happy number.

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 671856602113 - 2³³ = 663266667521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671856602173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2277181 + ... + 2555242.

It is an arithmetic number, because the mean of its divisors is an integer number (86055806592).

Almost surely, 2^671856602113 is an apocalyptic number.

It is an amenable number.

671856602113 is a deficient number, since it is larger than the sum of its proper divisors (16589850623).

671856602113 is a wasteful number, since it uses less digits than its factorization.

671856602113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835855.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 671856602113 in words is "six hundred seventy-one billion, eight hundred fifty-six million, six hundred two thousand, one hundred thirteen".