78067898868 has 24 divisors (see below), whose sum is σ = 182646801568. Its totient is φ = 25952865696.

The previous prime is 78067898851. The next prime is 78067898869. The reversal of 78067898868 is 86889876087.

It is a self number, because there is not a number n which added to its sum of digits gives 78067898868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78067898869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8716246 + ... + 8725197.

Almost surely, 2^78067898868 is an apocalyptic number.

It is an amenable number.

78067898868 is an abundant number, since it is smaller than the sum of its proper divisors (104578902700).

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

78067898868 is a wasteful number, since it uses less digits than its factorization.

78067898868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17441823 (or 17441821 counting only the distinct ones).

The product of its (nonzero) digits is 520224768, while the sum is 75.

The spelling of 78067898868 in words is "seventy-eight billion, sixty-seven million, eight hundred ninety-eight thousand, eight hundred sixty-eight".