68486575841783 has 16 divisors (see below), whose sum is σ = 77760090811392. Its totient is φ = 60252119472600.

The previous prime is 68486575841779. The next prime is 68486575841809. The reversal of 68486575841783 is 38714857568486.

It is not a de Polignac number, because 68486575841783 - 2² = 68486575841779 is a prime.

It is a super-2 number, since 2×68486575841783² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68486575841698 and 68486575841707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68486575844783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829877741 + ... + 829960262.

It is an arithmetic number, because the mean of its divisors is an integer number (4860005675712).

Almost surely, 2^{68486575841783} is an apocalyptic number.

68486575841783 is a deficient number, since it is larger than the sum of its proper divisors (9273514969609).

68486575841783 is a wasteful number, since it uses less digits than its factorization.

68486575841783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659838067 (or 1659838045 counting only the distinct ones).

The product of its digits is 8670412800, while the sum is 80.

The spelling of 68486575841783 in words is "sixty-eight trillion, four hundred eighty-six billion, five hundred seventy-five million, eight hundred forty-one thousand, seven hundred eighty-three".