68036973312 has 576 divisors, whose sum is σ = 236528409600. Its totient is φ = 16845373440.

The previous prime is 68036973311. The next prime is 68036973313. The reversal of 68036973312 is 21337963086.

68036973312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (68036973311) and next prime (68036973313).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (68036973311) 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, 166349364 + ... + 166349772.

It is an arithmetic number, because the mean of its divisors is an integer number (410639600).

Almost surely, 2^68036973312 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 68036973312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118264204800).

68036973312 is an abundant number, since it is smaller than the sum of its proper divisors (168491436288).

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

68036973312 is a wasteful number, since it uses less digits than its factorization.

68036973312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 68036973312 in words is "sixty-eight billion, thirty-six million, nine hundred seventy-three thousand, three hundred twelve".