71678388787968 has 36 divisors (see below), whose sum is σ = 190769045161688. Its totient is φ = 23892796262400.

The previous prime is 71678388787727. The next prime is 71678388787987. The reversal of 71678388787968 is 86978788387617.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46665616933 + ... + 46665618468.

Almost surely, 2^{71678388787968} is an apocalyptic number.

It is an amenable number.

71678388787968 is an abundant number, since it is smaller than the sum of its proper divisors (119090656373720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71678388787968 is an equidigital number, since it uses as much as digits as its factorization.

71678388787968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93331235420 (or 93331235406 counting only the distinct ones).

The product of its digits is 76473040896, while the sum is 93.

The spelling of 71678388787968 in words is "seventy-one trillion, six hundred seventy-eight billion, three hundred eighty-eight million, seven hundred eighty-seven thousand, nine hundred sixty-eight".