68820814824 has 32 divisors (see below), whose sum is σ = 174408918720. Its totient is φ = 22626020736.

The previous prime is 68820814813. The next prime is 68820814871. The reversal of 68820814824 is 42841802886.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19638892 + ... + 19642395.

It is an arithmetic number, because the mean of its divisors is an integer number (5450278710).

Almost surely, 2^68820814824 is an apocalyptic number.

It is an amenable number.

68820814824 is an abundant number, since it is smaller than the sum of its proper divisors (105588103896).

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

68820814824 is a wasteful number, since it uses less digits than its factorization.

68820814824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39281369 (or 39281365 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 51.

The spelling of 68820814824 in words is "sixty-eight billion, eight hundred twenty million, eight hundred fourteen thousand, eight hundred twenty-four".