681883246206 has 12 divisors (see below), whose sum is σ = 1477413700152. Its totient is φ = 227294415396.

The previous prime is 681883246199. The next prime is 681883246273. The reversal of 681883246206 is 602642388186.

681883246206 is a `hidden beast` number, since 6 + 8 + 1 + 8 + 8 + 3 + 2 + 4 + 620 + 6 = 666.

It is a super-2 number, since 2×681883246206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 18941201266 + ... + 18941201301.

It is an arithmetic number, because the mean of its divisors is an integer number (123117808346).

Almost surely, 2^681883246206 is an apocalyptic number.

681883246206 is an abundant number, since it is smaller than the sum of its proper divisors (795530453946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681883246206 is a wasteful number, since it uses less digits than its factorization.

681883246206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37882402575 (or 37882402572 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 54.

The spelling of 681883246206 in words is "six hundred eighty-one billion, eight hundred eighty-three million, two hundred forty-six thousand, two hundred six".