68011528 has 32 divisors (see below), whose sum is σ = 139003200. Its totient is φ = 31007808.

The previous prime is 68011501. The next prime is 68011547. The reversal of 68011528 is 82511086.

It is a self number, because there is not a number n which added to its sum of digits gives 68011528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4693 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (4343850).

Almost surely, 2^68011528 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 68011528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69501600).

68011528 is an abundant number, since it is smaller than the sum of its proper divisors (70991672).

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

68011528 is a wasteful number, since it uses less digits than its factorization.

68011528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7981 (or 7977 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 68011528 is about 8246.9102092844. The cubic root of 68011528 is about 408.1885742414.

The spelling of 68011528 in words is "sixty-eight million, eleven thousand, five hundred twenty-eight".