428464464823 has 8 divisors (see below), whose sum is σ = 438182664192. Its totient is φ = 418771346136.

The previous prime is 428464464817. The next prime is 428464464839. The reversal of 428464464823 is 328464464824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428464464823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428464464853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6235615 + ... + 6303952.

It is an arithmetic number, because the mean of its divisors is an integer number (54772833024).

Almost surely, 2^428464464823 is an apocalyptic number.

428464464823 is a deficient number, since it is larger than the sum of its proper divisors (9718199369).

428464464823 is a wasteful number, since it uses less digits than its factorization.

428464464823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12540341.

The product of its digits is 28311552, while the sum is 55.

Subtracting from 428464464823 its reverse (328464464824), we obtain a palindrome (99999999999).

The spelling of 428464464823 in words is "four hundred twenty-eight billion, four hundred sixty-four million, four hundred sixty-four thousand, eight hundred twenty-three".