67773316969 has 4 divisors (see below), whose sum is σ = 67790783700. Its totient is φ = 67755850240.

The previous prime is 67773316967. The next prime is 67773316979. The reversal of 67773316969 is 96961337776.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41488801344 + 26284515625 = 203688^2 + 162125^2 .

It is a cyclic number.

It is not a de Polignac number, because 67773316969 - 2¹ = 67773316967 is a prime.

It is a super-2 number, since 2×67773316969² (a number of 22 digits) contains 22 as substring.

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 67773316969.

It is not an unprimeable number, because it can be changed into a prime (67773316967) 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, 8727544 + ... + 8735305.

It is an arithmetic number, because the mean of its divisors is an integer number (16947695925).

Almost surely, 2^67773316969 is an apocalyptic number.

It is an amenable number.

67773316969 is a deficient number, since it is larger than the sum of its proper divisors (17466731).

67773316969 is a wasteful number, since it uses less digits than its factorization.

67773316969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17466730.

The product of its digits is 54010152, while the sum is 64.

The spelling of 67773316969 in words is "sixty-seven billion, seven hundred seventy-three million, three hundred sixteen thousand, nine hundred sixty-nine".