68745219563 has 4 divisors (see below), whose sum is σ = 68757520848. Its totient is φ = 68732918280.

The previous prime is 68745219541. The next prime is 68745219589. The reversal of 68745219563 is 36591254786.

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 68745219563 - 2⁸ = 68745219307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68745219499 and 68745219508.

It is not an unprimeable number, because it can be changed into a prime (68745212563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6142256 + ... + 6153437.

It is an arithmetic number, because the mean of its divisors is an integer number (17189380212).

Almost surely, 2^68745219563 is an apocalyptic number.

68745219563 is a deficient number, since it is larger than the sum of its proper divisors (12301285).

68745219563 is a wasteful number, since it uses less digits than its factorization.

68745219563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12301284.

The product of its digits is 10886400, while the sum is 56.

The spelling of 68745219563 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, five hundred sixty-three".