427671089999 has 4 divisors (see below), whose sum is σ = 434054240664. Its totient is φ = 421287939336.

The previous prime is 427671089987. The next prime is 427671090013. The reversal of 427671089999 is 999980176724.

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 427671089999 - 2⁴ = 427671089983 is a prime.

It is a super-2 number, since 2×427671089999² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427671089969) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3191575232 + ... + 3191575365.

It is an arithmetic number, because the mean of its divisors is an integer number (108513560166).

Almost surely, 2^427671089999 is an apocalyptic number.

427671089999 is a deficient number, since it is larger than the sum of its proper divisors (6383150665).

427671089999 is an equidigital number, since it uses as much as digits as its factorization.

427671089999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383150664.

The product of its (nonzero) digits is 123451776, while the sum is 71.

The spelling of 427671089999 in words is "four hundred twenty-seven billion, six hundred seventy-one million, eighty-nine thousand, nine hundred ninety-nine".