306461056673 has 4 divisors (see below), whose sum is σ = 306737397780. Its totient is φ = 306184715568.

The previous prime is 306461056669. The next prime is 306461056747. The reversal of 306461056673 is 376650164603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376650164603 = 691 ⋅545079833.

It can be written as a sum of positive squares in 2 ways, for example, as 24195180304 + 282265876369 = 155548^2 + 531287^2 .

It is a cyclic number.

It is not a de Polignac number, because 306461056673 - 2² = 306461056669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (306461055673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138168890 + ... + 138171107.

It is an arithmetic number, because the mean of its divisors is an integer number (76684349445).

Almost surely, 2^306461056673 is an apocalyptic number.

It is an amenable number.

306461056673 is a deficient number, since it is larger than the sum of its proper divisors (276341107).

306461056673 is a wasteful number, since it uses less digits than its factorization.

306461056673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276341106.

The product of its (nonzero) digits is 1632960, while the sum is 47.

The spelling of 306461056673 in words is "three hundred six billion, four hundred sixty-one million, fifty-six thousand, six hundred seventy-three".