68910912 has 196 divisors, whose sum is σ = 235423456. Its totient is φ = 19595520.

The previous prime is 68910901. The next prime is 68910913. The reversal of 68910912 is 21901986.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 326487 + ... + 326697.

Almost surely, 2^68910912 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 68910912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117711728).

68910912 is an abundant number, since it is smaller than the sum of its proper divisors (166512544).

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

68910912 is an equidigital number, since it uses as much as digits as its factorization.

68910912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 68910912 is about 8301.2596634487. The cubic root of 68910912 is about 409.9799950580.

The spelling of 68910912 in words is "sixty-eight million, nine hundred ten thousand, nine hundred twelve".