67678900389 has 24 divisors (see below), whose sum is σ = 97914412544. Its totient is φ = 45047340000.

The previous prime is 67678900363. The next prime is 67678900403. The reversal of 67678900389 is 98300987676.

It is a happy number.

67678900389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67678900389 - 2⁹ = 67678899877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67678900319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24247584 + ... + 24250374.

Almost surely, 2^67678900389 is an apocalyptic number.

It is an amenable number.

67678900389 is a deficient number, since it is larger than the sum of its proper divisors (30235512155).

67678900389 is a wasteful number, since it uses less digits than its factorization.

67678900389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129 (or 6126 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 67678900389 in words is "sixty-seven billion, six hundred seventy-eight million, nine hundred thousand, three hundred eighty-nine".