68819750 has 32 divisors (see below), whose sum is σ = 131594112. Its totient is φ = 26937600.

The previous prime is 68819743. The next prime is 68819753. The reversal of 68819750 is 5791886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68819753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8822 + ... + 14678.

It is an arithmetic number, because the mean of its divisors is an integer number (4112316).

Almost surely, 2^68819750 is an apocalyptic number.

68819750 is a deficient number, since it is larger than the sum of its proper divisors (62774362).

68819750 is a wasteful number, since it uses less digits than its factorization.

68819750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 68819750 is about 8295.7669928705. The cubic root of 68819750 is about 409.7991282536.

The spelling of 68819750 in words is "sixty-eight million, eight hundred nineteen thousand, seven hundred fifty".