67189841064 has 64 divisors (see below), whose sum is σ = 197617190400. Its totient is φ = 21079164672.

The previous prime is 67189841063. The next prime is 67189841101. The reversal of 67189841064 is 46014898176.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 67189841064.

It is not an unprimeable number, because it can be changed into a prime (67189841063) 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 15 ways as a sum of consecutive naturals, for example, 9145272 + ... + 9152615.

It is an arithmetic number, because the mean of its divisors is an integer number (3087768600).

Almost surely, 2^67189841064 is an apocalyptic number.

It is an amenable number.

67189841064 is an abundant number, since it is smaller than the sum of its proper divisors (130427349336).

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

67189841064 is a wasteful number, since it uses less digits than its factorization.

67189841064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18297919 (or 18297909 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 67189841064 in words is "sixty-seven billion, one hundred eighty-nine million, eight hundred forty-one thousand, sixty-four".