68130784 has 24 divisors (see below), whose sum is σ = 139965840. Its totient is φ = 32583936.

The previous prime is 68130779. The next prime is 68130787. The reversal of 68130784 is 48703186.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68130787) 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 3 ways as a sum of consecutive naturals, for example, 45549 + ... + 47020.

It is an arithmetic number, because the mean of its divisors is an integer number (5831910).

Almost surely, 2^68130784 is an apocalyptic number.

It is an amenable number.

68130784 is an abundant number, since it is smaller than the sum of its proper divisors (71835056).

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

68130784 is a wasteful number, since it uses less digits than its factorization.

68130784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92602 (or 92594 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 68130784 is about 8254.1373867897. The cubic root of 68130784 is about 408.4270167203.

The spelling of 68130784 in words is "sixty-eight million, one hundred thirty thousand, seven hundred eighty-four".