68253715012 has 12 divisors (see below), whose sum is σ = 136507430080. Its totient is φ = 29251592136.

The previous prime is 68253714989. The next prime is 68253715031. The reversal of 68253715012 is 21051735286.

68253715012 is an admirable number.

It is a super-2 number, since 2×68253715012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1218816312 + ... + 1218816367.

Almost surely, 2^68253715012 is an apocalyptic number.

It is an amenable number.

68253715012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68253715012 is a wasteful number, since it uses less digits than its factorization.

68253715012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437632690 (or 2437632688 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 68253715012 in words is "sixty-eight billion, two hundred fifty-three million, seven hundred fifteen thousand, twelve".