68221272486 has 128 divisors (see below), whose sum is σ = 147695063040. Its totient is φ = 20958208128.

The previous prime is 68221272437. The next prime is 68221272571. The reversal of 68221272486 is 68427212286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106098081 + ... + 106098723.

It is an arithmetic number, because the mean of its divisors is an integer number (1153867680).

Almost surely, 2^68221272486 is an apocalyptic number.

68221272486 is an abundant number, since it is smaller than the sum of its proper divisors (79473790554).

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

68221272486 is a wasteful number, since it uses less digits than its factorization.

68221272486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970.

The product of its digits is 1032192, while the sum is 48.

The spelling of 68221272486 in words is "sixty-eight billion, two hundred twenty-one million, two hundred seventy-two thousand, four hundred eighty-six".