427233346809 has 4 divisors (see below), whose sum is σ = 569644462416. Its totient is φ = 284822231204.

The previous prime is 427233346781. The next prime is 427233346829. The reversal of 427233346809 is 908643332724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427233346809 - 2¹² = 427233342713 is a prime.

It is a super-3 number, since 3×427233346809³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (427233346829) 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, 71205557799 + ... + 71205557804.

It is an arithmetic number, because the mean of its divisors is an integer number (142411115604).

Almost surely, 2^427233346809 is an apocalyptic number.

It is an amenable number.

427233346809 is a deficient number, since it is larger than the sum of its proper divisors (142411115607).

427233346809 is a wasteful number, since it uses less digits than its factorization.

427233346809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142411115606.

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 427233346809 in words is "four hundred twenty-seven billion, two hundred thirty-three million, three hundred forty-six thousand, eight hundred nine".