68383707547 has 4 divisors (see below), whose sum is σ = 69838680096. Its totient is φ = 66928735000.

The previous prime is 68383707521. The next prime is 68383707563. The reversal of 68383707547 is 74570738386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68383707547 - 2¹⁹ = 68383183259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68383707491 and 68383707500.

It is not an unprimeable number, because it can be changed into a prime (68383707347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727486204 + ... + 727486297.

It is an arithmetic number, because the mean of its divisors is an integer number (17459670024).

Almost surely, 2^68383707547 is an apocalyptic number.

68383707547 is a deficient number, since it is larger than the sum of its proper divisors (1454972549).

68383707547 is a wasteful number, since it uses less digits than its factorization.

68383707547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454972548.

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 68383707547 in words is "sixty-eight billion, three hundred eighty-three million, seven hundred seven thousand, five hundred forty-seven".