68745184063 has 4 divisors (see below), whose sum is σ = 68749132320. Its totient is φ = 68741235808.

The previous prime is 68745184031. The next prime is 68745184097. The reversal of 68745184063 is 36048154786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68745184063 - 2⁵ = 68745184031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68745184063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68745184163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1947895 + ... + 1982872.

It is an arithmetic number, because the mean of its divisors is an integer number (17187283080).

Almost surely, 2^68745184063 is an apocalyptic number.

68745184063 is a deficient number, since it is larger than the sum of its proper divisors (3948257).

68745184063 is a wasteful number, since it uses less digits than its factorization.

68745184063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948256.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 68745184063 in words is "sixty-eight billion, seven hundred forty-five million, one hundred eighty-four thousand, sixty-three".