68533983775 has 24 divisors (see below), whose sum is σ = 88811663904. Its totient is φ = 52363766400.

The previous prime is 68533983757. The next prime is 68533983781. The reversal of 68533983775 is 57738933586.

It is not a de Polignac number, because 68533983775 - 2¹⁹ = 68533459487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 289917 + ... + 470233.

It is an arithmetic number, because the mean of its divisors is an integer number (3700485996).

Almost surely, 2^68533983775 is an apocalyptic number.

68533983775 is a deficient number, since it is larger than the sum of its proper divisors (20277680129).

68533983775 is a wasteful number, since it uses less digits than its factorization.

68533983775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181011 (or 181006 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 64.

The spelling of 68533983775 in words is "sixty-eight billion, five hundred thirty-three million, nine hundred eighty-three thousand, seven hundred seventy-five".