427385008163 has 4 divisors (see below), whose sum is σ = 427394049288. Its totient is φ = 427375967040.

The previous prime is 427385008153. The next prime is 427385008199. The reversal of 427385008163 is 361800583724.

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

It is a cyclic number.

It is not a de Polignac number, because 427385008163 - 2¹⁰ = 427385007139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427385008153) 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, 4449281 + ... + 4544322.

It is an arithmetic number, because the mean of its divisors is an integer number (106848512322).

Almost surely, 2^427385008163 is an apocalyptic number.

427385008163 is a deficient number, since it is larger than the sum of its proper divisors (9041125).

427385008163 is an equidigital number, since it uses as much as digits as its factorization.

427385008163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041124.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 427385008163 in words is "four hundred twenty-seven billion, three hundred eighty-five million, eight thousand, one hundred sixty-three".