427006716673 has 4 divisors (see below), whose sum is σ = 427009139668. Its totient is φ = 427004293680.

The previous prime is 427006716581. The next prime is 427006716691. The reversal of 427006716673 is 376617600724.

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 346865636209 + 80141080464 = 588953^2 + 283092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427006716673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427003716673) by changing a digit.

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, 924486 + ... + 1307167.

It is an arithmetic number, because the mean of its divisors is an integer number (106752284917).

Almost surely, 2^427006716673 is an apocalyptic number.

It is an amenable number.

427006716673 is a deficient number, since it is larger than the sum of its proper divisors (2422995).

427006716673 is a wasteful number, since it uses less digits than its factorization.

427006716673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422994.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 427006716673 in words is "four hundred twenty-seven billion, six million, seven hundred sixteen thousand, six hundred seventy-three".