681886084189 has 8 divisors (see below), whose sum is σ = 684399381120. Its totient is φ = 679373402400.

The previous prime is 681886084181. The next prime is 681886084211. The reversal of 681886084189 is 981480688186.

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 681886084189 - 2³ = 681886084181 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 (681886084181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129602 + ... + 2428780.

It is an arithmetic number, because the mean of its divisors is an integer number (85549922640).

Almost surely, 2^681886084189 is an apocalyptic number.

It is an amenable number.

681886084189 is a deficient number, since it is larger than the sum of its proper divisors (2513296931).

681886084189 is a wasteful number, since it uses less digits than its factorization.

681886084189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307571.

The product of its (nonzero) digits is 42467328, while the sum is 67.

The spelling of 681886084189 in words is "six hundred eighty-one billion, eight hundred eighty-six million, eighty-four thousand, one hundred eighty-nine".