67473273979 has 4 divisors (see below), whose sum is σ = 67475029176. Its totient is φ = 67471518784.

The previous prime is 67473273953. The next prime is 67473273991. The reversal of 67473273979 is 97937237476.

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 67473273979 - 2⁹ = 67473273467 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 67473273979.

It is not an unprimeable number, because it can be changed into a prime (67473273929) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 818614 + ... + 897259.

It is an arithmetic number, because the mean of its divisors is an integer number (16868757294).

Almost surely, 2^67473273979 is an apocalyptic number.

67473273979 is a deficient number, since it is larger than the sum of its proper divisors (1755197).

67473273979 is a wasteful number, since it uses less digits than its factorization.

67473273979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755196.

The product of its digits is 84015792, while the sum is 64.

The spelling of 67473273979 in words is "sixty-seven billion, four hundred seventy-three million, two hundred seventy-three thousand, nine hundred seventy-nine".