673840824068 has 12 divisors (see below), whose sum is σ = 1211092292172. Its totient is φ = 327814454880.

The previous prime is 673840824053. The next prime is 673840824073. The reversal of 673840824068 is 860428048376.

It can be written as a sum of positive squares in 2 ways, for example, as 522090063364 + 151750760704 = 722558^2 + 389552^2 .

It is a super-2 number, since 2×673840824068² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276489123 + ... + 2276489418.

It is an arithmetic number, because the mean of its divisors is an integer number (100924357681).

Almost surely, 2^673840824068 is an apocalyptic number.

It is an amenable number.

673840824068 is a deficient number, since it is larger than the sum of its proper divisors (537251468104).

673840824068 is a wasteful number, since it uses less digits than its factorization.

673840824068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552978582 (or 4552978580 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 673840824068 in words is "six hundred seventy-three billion, eight hundred forty million, eight hundred twenty-four thousand, sixty-eight".