67406841067 has 4 divisors (see below), whose sum is σ = 67427565760. Its totient is φ = 67386116376.

The previous prime is 67406841053. The next prime is 67406841077. The reversal of 67406841067 is 76014860476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67406841067 - 2³¹ = 65259357419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67406841067.

It is not an unprimeable number, because it can be changed into a prime (67406841077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10357467 + ... + 10363972.

It is an arithmetic number, because the mean of its divisors is an integer number (16856891440).

Almost surely, 2^67406841067 is an apocalyptic number.

67406841067 is a deficient number, since it is larger than the sum of its proper divisors (20724693).

67406841067 is a wasteful number, since it uses less digits than its factorization.

67406841067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20724692.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 67406841067 in words is "sixty-seven billion, four hundred six million, eight hundred forty-one thousand, sixty-seven".