67406666673800 has 48 divisors (see below), whose sum is σ = 157393120297140. Its totient is φ = 26846947051520.

The previous prime is 67406666673767. The next prime is 67406666673817. The reversal of 67406666673800 is 837666660476.

67406666673800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 32164800645604 + 35241866028196 = 5671402^2 + 5936486^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723200897 + ... + 723294096.

Almost surely, 2^{67406666673800} is an apocalyptic number.

It is an amenable number.

67406666673800 is an abundant number, since it is smaller than the sum of its proper divisors (89986453623340).

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

67406666673800 is a wasteful number, since it uses less digits than its factorization.

67406666673800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446495242 (or 1446495233 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 65.

The spelling of 67406666673800 in words is "sixty-seven trillion, four hundred six billion, six hundred sixty-six million, six hundred seventy-three thousand, eight hundred".