68467341109 has 4 divisors (see below), whose sum is σ = 70137276300. Its totient is φ = 66797405920.

The previous prime is 68467341097. The next prime is 68467341127. The reversal of 68467341109 is 90114376486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90114376486 = 2 ⋅45057188243.

It can be written as a sum of positive squares in 2 ways, for example, as 22613542884 + 45853798225 = 150378^2 + 214135^2 .

It is a cyclic number.

It is not a de Polignac number, because 68467341109 - 2¹³ = 68467332917 is a prime.

It is a super-2 number, since 2×68467341109² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68467341409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834967534 + ... + 834967615.

It is an arithmetic number, because the mean of its divisors is an integer number (17534319075).

Almost surely, 2^68467341109 is an apocalyptic number.

It is an amenable number.

68467341109 is a deficient number, since it is larger than the sum of its proper divisors (1669935191).

68467341109 is a wasteful number, since it uses less digits than its factorization.

68467341109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669935190.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 68467341109 in words is "sixty-eight billion, four hundred sixty-seven million, three hundred forty-one thousand, one hundred nine".