68505868206 has 64 divisors (see below), whose sum is σ = 153331200000. Its totient is φ = 22671402336.

The previous prime is 68505868199. The next prime is 68505868217. The reversal of 68505868206 is 60286850586.

68505868206 is a `hidden beast` number, since 6 + 8 + 50 + 586 + 8 + 2 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5140680 + ... + 5153988.

It is an arithmetic number, because the mean of its divisors is an integer number (2395800000).

Almost surely, 2^68505868206 is an apocalyptic number.

68505868206 is an abundant number, since it is smaller than the sum of its proper divisors (84825331794).

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

68505868206 is a wasteful number, since it uses less digits than its factorization.

68505868206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13998 (or 13992 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 68505868206 in words is "sixty-eight billion, five hundred five million, eight hundred sixty-eight thousand, two hundred six".