68178767798 has 16 divisors (see below), whose sum is σ = 103974937440. Its totient is φ = 33520780800.

The previous prime is 68178767749. The next prime is 68178767849. The reversal of 68178767798 is 89776787186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348758 + ... + 507926.

It is an arithmetic number, because the mean of its divisors is an integer number (6498433590).

Almost surely, 2^68178767798 is an apocalyptic number.

68178767798 is a deficient number, since it is larger than the sum of its proper divisors (35796169642).

68178767798 is a wasteful number, since it uses less digits than its factorization.

68178767798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162743.

The product of its digits is 398297088, while the sum is 74.

The spelling of 68178767798 in words is "sixty-eight billion, one hundred seventy-eight million, seven hundred sixty-seven thousand, seven hundred ninety-eight".