68556559484 has 24 divisors (see below), whose sum is σ = 137257047648. Its totient is φ = 29350540800.

The previous prime is 68556559441. The next prime is 68556559493. The reversal of 68556559484 is 48495565586.

It is a self number, because there is not a number n which added to its sum of digits gives 68556559484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257917 + ... + 1311284.

It is an arithmetic number, because the mean of its divisors is an integer number (5719043652).

Almost surely, 2^68556559484 is an apocalyptic number.

It is an amenable number.

68556559484 is an abundant number, since it is smaller than the sum of its proper divisors (68700488164).

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

68556559484 is a wasteful number, since it uses less digits than its factorization.

68556559484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570165 (or 2570163 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 65.

The spelling of 68556559484 in words is "sixty-eight billion, five hundred fifty-six million, five hundred fifty-nine thousand, four hundred eighty-four".