68548676679 has 80 divisors (see below), whose sum is σ = 117988358400. Its totient is φ = 38850627456.

The previous prime is 68548676639. The next prime is 68548676711. The reversal of 68548676679 is 97667684586.

68548676679 is a `hidden beast` number, since 6 + 8 + 5 + 486 + 76 + 6 + 79 = 666.

It is not a de Polignac number, because 68548676679 - 2¹² = 68548672583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68548676639) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 57748924 + ... + 57750110.

It is an arithmetic number, because the mean of its divisors is an integer number (1474854480).

Almost surely, 2^68548676679 is an apocalyptic number.

68548676679 is a deficient number, since it is larger than the sum of its proper divisors (49439681721).

68548676679 is a wasteful number, since it uses less digits than its factorization.

68548676679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1945 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 72.

The spelling of 68548676679 in words is "sixty-eight billion, five hundred forty-eight million, six hundred seventy-six thousand, six hundred seventy-nine".