68747533558655 has 8 divisors (see below), whose sum is σ = 94282331737632. Its totient is φ = 47141165868768.

The previous prime is 68747533558621. The next prime is 68747533558657. The reversal of 68747533558655 is 55685533574786.

68747533558655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68747533558655 - 2¹² = 68747533554559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68747533558657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982107622232 + ... + 982107622301.

It is an arithmetic number, because the mean of its divisors is an integer number (11785291467204).

Almost surely, 2^{68747533558655} is an apocalyptic number.

68747533558655 is a deficient number, since it is larger than the sum of its proper divisors (25534798178977).

68747533558655 is a wasteful number, since it uses less digits than its factorization.

68747533558655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964215244545.

The product of its digits is 12700800000, while the sum is 77.

The spelling of 68747533558655 in words is "sixty-eight trillion, seven hundred forty-seven billion, five hundred thirty-three million, five hundred fifty-eight thousand, six hundred fifty-five".