206893627668 has 216 divisors, whose sum is σ = 683650251648. Its totient is φ = 52192812672.

The previous prime is 206893627663. The next prime is 206893627669. The reversal of 206893627668 is 866726398602.

206893627668 is a `hidden beast` number, since 206 + 8 + 9 + 362 + 7 + 6 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206893627663) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 331305 + ... + 723567.

Almost surely, 2^206893627668 is an apocalyptic number.

206893627668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206893627668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341825125824).

206893627668 is an abundant number, since it is smaller than the sum of its proper divisors (476756623980).

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

206893627668 is a wasteful number, since it uses less digits than its factorization.

206893627668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392323 (or 392311 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 206893627668 in words is "two hundred six billion, eight hundred ninety-three million, six hundred twenty-seven thousand, six hundred sixty-eight".