67406804078 has 8 divisors (see below), whose sum is σ = 101232175080. Its totient is φ = 33662745720.

The previous prime is 67406804077. The next prime is 67406804083. The reversal of 67406804078 is 87040860476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67406804071) 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 3 ways as a sum of consecutive naturals, for example, 20326088 + ... + 20329403.

It is an arithmetic number, because the mean of its divisors is an integer number (12654021885).

Almost surely, 2^67406804078 is an apocalyptic number.

67406804078 is a deficient number, since it is larger than the sum of its proper divisors (33825371002).

67406804078 is a wasteful number, since it uses less digits than its factorization.

67406804078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40656322.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 67406804078 in words is "sixty-seven billion, four hundred six million, eight hundred four thousand, seventy-eight".