67320969447 has 16 divisors (see below), whose sum is σ = 89891211872. Its totient is φ = 44815731840.

The previous prime is 67320969413. The next prime is 67320969449. The reversal of 67320969447 is 74496902376.

It is not a de Polignac number, because 67320969447 - 2⁷ = 67320969319 is a prime.

It is a super-2 number, since 2×67320969447² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67320969449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9298713 + ... + 9305949.

It is an arithmetic number, because the mean of its divisors is an integer number (5618200742).

Almost surely, 2^67320969447 is an apocalyptic number.

67320969447 is a deficient number, since it is larger than the sum of its proper divisors (22570242425).

67320969447 is a wasteful number, since it uses less digits than its factorization.

67320969447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11298.

The product of its (nonzero) digits is 13716864, while the sum is 57.

The spelling of 67320969447 in words is "sixty-seven billion, three hundred twenty million, nine hundred sixty-nine thousand, four hundred forty-seven".