68507712 has 168 divisors, whose sum is σ = 241864896. Its totient is φ = 18054144.

The previous prime is 68507707. The next prime is 68507741. The reversal of 68507712 is 21770586.

It is a tau number, because it is divible by the number of its divisors (168).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51763 + ... + 53069.

It is an arithmetic number, because the mean of its divisors is an integer number (1439672).

Almost surely, 2^68507712 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 68507712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120932448).

68507712 is an abundant number, since it is smaller than the sum of its proper divisors (173357184).

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

68507712 is a wasteful number, since it uses less digits than its factorization.

68507712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 68507712 is about 8276.9385644694. The cubic root of 68507712 is about 409.1788283494.

The spelling of 68507712 in words is "sixty-eight million, five hundred seven thousand, seven hundred twelve".