67804385616 has 60 divisors (see below), whose sum is σ = 207008848800. Its totient is φ = 20546783040.

The previous prime is 67804385599. The next prime is 67804385617. The reversal of 67804385616 is 61658340876.

67804385616 is a `hidden beast` number, since 6 + 78 + 0 + 4 + 3 + 8 + 561 + 6 = 666.

67804385616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67804385617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21401316 + ... + 21404483.

It is an arithmetic number, because the mean of its divisors is an integer number (3450147480).

Almost surely, 2^67804385616 is an apocalyptic number.

67804385616 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

67804385616 is an abundant number, since it is smaller than the sum of its proper divisors (139204463184).

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

67804385616 is a wasteful number, since it uses less digits than its factorization.

67804385616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42805824 (or 42805815 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 67804385616 in words is "sixty-seven billion, eight hundred four million, three hundred eighty-five thousand, six hundred sixteen".