68386775041 has 8 divisors (see below), whose sum is σ = 77979490344. Its totient is φ = 59412944640.

The previous prime is 68386774997. The next prime is 68386775047. The reversal of 68386775041 is 14057768386.

It can be written as a sum of positive squares in 4 ways, for example, as 14984641 + 68371790400 = 3871^2 + 261480^2 .

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 68386775041 - 2¹⁵ = 68386742273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68386775047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154720990 + ... + 154721431.

It is an arithmetic number, because the mean of its divisors is an integer number (9747436293).

Almost surely, 2^68386775041 is an apocalyptic number.

It is an amenable number.

68386775041 is a deficient number, since it is larger than the sum of its proper divisors (9592715303).

68386775041 is a wasteful number, since it uses less digits than its factorization.

68386775041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309442451.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 68386775041 in words is "sixty-eight billion, three hundred eighty-six million, seven hundred seventy-five thousand, forty-one".