68350718737 has 4 divisors (see below), whose sum is σ = 78115107136. Its totient is φ = 58586330340.

The previous prime is 68350718719. The next prime is 68350718743. The reversal of 68350718737 is 73781705386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68350718737 - 2²³ = 68342330129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68350718707) 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 3 ways as a sum of consecutive naturals, for example, 4882194189 + ... + 4882194202.

It is an arithmetic number, because the mean of its divisors is an integer number (19528776784).

Almost surely, 2^68350718737 is an apocalyptic number.

It is an amenable number.

68350718737 is a deficient number, since it is larger than the sum of its proper divisors (9764388399).

68350718737 is an equidigital number, since it uses as much as digits as its factorization.

68350718737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9764388398.

The product of its (nonzero) digits is 5927040, while the sum is 55.

It can be divided in two parts, 683507 and 18737, that added together give a square (702244 = 838²).

The spelling of 68350718737 in words is "sixty-eight billion, three hundred fifty million, seven hundred eighteen thousand, seven hundred thirty-seven".