68362721753 has 8 divisors (see below), whose sum is σ = 72486023520. Its totient is φ = 64291946400.

The previous prime is 68362721747. The next prime is 68362721783. The reversal of 68362721753 is 35712726386.

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 68362721753 - 2¹⁸ = 68362459609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68362721723) 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, 13128923 + ... + 13134128.

It is an arithmetic number, because the mean of its divisors is an integer number (9060752940).

Almost surely, 2^68362721753 is an apocalyptic number.

It is an amenable number.

68362721753 is a deficient number, since it is larger than the sum of its proper divisors (4123301767).

68362721753 is a wasteful number, since it uses less digits than its factorization.

68362721753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26263207.

The product of its digits is 2540160, while the sum is 50.

The spelling of 68362721753 in words is "sixty-eight billion, three hundred sixty-two million, seven hundred twenty-one thousand, seven hundred fifty-three".