206884671928 has 256 divisors, whose sum is σ = 488163594240. Its totient is φ = 81006182400.

The previous prime is 206884671923. The next prime is 206884671941. The reversal of 206884671928 is 829176488602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206884671923) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74767201 + ... + 74769967.

It is an arithmetic number, because the mean of its divisors is an integer number (1906889040).

Almost surely, 2^206884671928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206884671928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244081797120).

206884671928 is an abundant number, since it is smaller than the sum of its proper divisors (281278922312).

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

206884671928 is a wasteful number, since it uses less digits than its factorization.

206884671928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 206884671928 in words is "two hundred six billion, eight hundred eighty-four million, six hundred seventy-one thousand, nine hundred twenty-eight".