68986354656 has 48 divisors (see below), whose sum is σ = 185506000848. Its totient is φ = 22434585600.

The previous prime is 68986354643. The next prime is 68986354699. The reversal of 68986354656 is 65645368986.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 8759575 + ... + 8767446.

It is an arithmetic number, because the mean of its divisors is an integer number (3864708351).

Almost surely, 2^68986354656 is an apocalyptic number.

It is an amenable number.

68986354656 is an abundant number, since it is smaller than the sum of its proper divisors (116519646192).

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

68986354656 is a wasteful number, since it uses less digits than its factorization.

68986354656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17527075 (or 17527067 counting only the distinct ones).

The product of its digits is 223948800, while the sum is 66.

The spelling of 68986354656 in words is "sixty-eight billion, nine hundred eighty-six million, three hundred fifty-four thousand, six hundred fifty-six".