68386775039 has 6 divisors (see below), whose sum is σ = 75168934680. Its totient is φ = 62169795380.

The previous prime is 68386774997. The next prime is 68386775047. The reversal of 68386775039 is 93057768386.

It is a de Polignac number, because none of the positive numbers 2^k-68386775039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68386775089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282589859 + ... + 282590100.

It is an arithmetic number, because the mean of its divisors is an integer number (12528155780).

Almost surely, 2^68386775039 is an apocalyptic number.

68386775039 is a deficient number, since it is larger than the sum of its proper divisors (6782159641).

68386775039 is a wasteful number, since it uses less digits than its factorization.

68386775039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565179981 (or 565179970 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 68386775039 in words is "sixty-eight billion, three hundred eighty-six million, seven hundred seventy-five thousand, thirty-nine".