67812220345 has 16 divisors (see below), whose sum is σ = 82543546368. Its totient is φ = 53470943680.

The previous prime is 67812220339. The next prime is 67812220367. The reversal of 67812220345 is 54302221876.

It is a de Polignac number, because none of the positive numbers 2^k-67812220345 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67812220298 and 67812220307.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1366152 + ... + 1414918.

It is an arithmetic number, because the mean of its divisors is an integer number (5158971648).

Almost surely, 2^67812220345 is an apocalyptic number.

It is an amenable number.

67812220345 is a deficient number, since it is larger than the sum of its proper divisors (14731326023).

67812220345 is a wasteful number, since it uses less digits than its factorization.

67812220345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52760.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 67812220345 in words is "sixty-seven billion, eight hundred twelve million, two hundred twenty thousand, three hundred forty-five".