68312229491101 has 6 divisors (see below), whose sum is σ = 72566970428570. Its totient is φ = 64293863050176.

The previous prime is 68312229491081. The next prime is 68312229491113. The reversal of 68312229491101 is 10119492221386.

It can be written as a sum of positive squares in 3 ways, for example, as 46565256367876 + 21746973123225 = 6823874^2 + 4663365^2 .

It is not a de Polignac number, because 68312229491101 - 2¹³ = 68312229482909 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 (68312229441101) 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, 118187247966 + ... + 118187248543.

Almost surely, 2^{68312229491101} is an apocalyptic number.

It is an amenable number.

68312229491101 is a deficient number, since it is larger than the sum of its proper divisors (4254740937469).

68312229491101 is a wasteful number, since it uses less digits than its factorization.

68312229491101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236374496543 (or 236374496526 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The spelling of 68312229491101 in words is "sixty-eight trillion, three hundred twelve billion, two hundred twenty-nine million, four hundred ninety-one thousand, one hundred one".