68545803459 has 16 divisors (see below), whose sum is σ = 104470196480. Its totient is φ = 39161737440.

The previous prime is 68545803449. The next prime is 68545803467. The reversal of 68545803459 is 95430854586.

It is not a de Polignac number, because 68545803459 - 2²¹ = 68543706307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68545803399 and 68545803408.

It is not an unprimeable number, because it can be changed into a prime (68545803439) 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 15 ways as a sum of consecutive naturals, for example, 187372 + ... + 414969.

It is an arithmetic number, because the mean of its divisors is an integer number (6529387280).

Almost surely, 2^68545803459 is an apocalyptic number.

68545803459 is a deficient number, since it is larger than the sum of its proper divisors (35924393021).

68545803459 is a wasteful number, since it uses less digits than its factorization.

68545803459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607770.

The product of its (nonzero) digits is 20736000, while the sum is 57.

The spelling of 68545803459 in words is "sixty-eight billion, five hundred forty-five million, eight hundred three thousand, four hundred fifty-nine".