68055208739 has 12 divisors (see below), whose sum is σ = 81007341624. Its totient is φ = 56976452064.

The previous prime is 68055208693. The next prime is 68055208747. The reversal of 68055208739 is 93780255086.

It is not a de Polignac number, because 68055208739 - 2¹⁶ = 68055143203 is a prime.

It is a super-2 number, since 2×68055208739² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68055208769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16147682 + ... + 16151895.

It is an arithmetic number, because the mean of its divisors is an integer number (6750611802).

Almost surely, 2^68055208739 is an apocalyptic number.

68055208739 is a deficient number, since it is larger than the sum of its proper divisors (12952132885).

68055208739 is a wasteful number, since it uses less digits than its factorization.

68055208739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32299634 (or 32299627 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 68055208739 in words is "sixty-eight billion, fifty-five million, two hundred eight thousand, seven hundred thirty-nine".