68250397212 has 18 divisors (see below), whose sum is σ = 172521837488. Its totient is φ = 22750132392.

The previous prime is 68250397169. The next prime is 68250397219. The reversal of 68250397212 is 21279305286.

68250397212 is a `hidden beast` number, since 6 + 8 + 250 + 397 + 2 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68250397219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 947922148 + ... + 947922219.

Almost surely, 2^68250397212 is an apocalyptic number.

It is an amenable number.

68250397212 is an abundant number, since it is smaller than the sum of its proper divisors (104271440276).

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

68250397212 is a wasteful number, since it uses less digits than its factorization.

68250397212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895844377 (or 1895844372 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 68250397212 in words is "sixty-eight billion, two hundred fifty million, three hundred ninety-seven thousand, two hundred twelve".