68534688643586 has 32 divisors (see below), whose sum is σ = 114513751971648. Its totient is φ = 30501116663040.

The previous prime is 68534688643573. The next prime is 68534688643607.

68534688643586 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 68534688643586.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155525060 + ... + 155965103.

It is an arithmetic number, because the mean of its divisors is an integer number (3578554749114).

Almost surely, 2^{68534688643586} is an apocalyptic number.

68534688643586 is a deficient number, since it is larger than the sum of its proper divisors (45979063328062).

68534688643586 is a wasteful number, since it uses less digits than its factorization.

68534688643586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311490386.

The product of its digits is 19110297600, while the sum is 80.

The spelling of 68534688643586 in words is "sixty-eight trillion, five hundred thirty-four billion, six hundred eighty-eight million, six hundred forty-three thousand, five hundred eighty-six".