428491827422 has 4 divisors (see below), whose sum is σ = 642737741136. Its totient is φ = 214245913710.

The previous prime is 428491827397. The next prime is 428491827427. The reversal of 428491827422 is 224728194824.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428491827427) 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 as a sum of consecutive naturals, namely, 107122956854 + ... + 107122956857.

It is an arithmetic number, because the mean of its divisors is an integer number (160684435284).

Almost surely, 2^428491827422 is an apocalyptic number.

428491827422 is a deficient number, since it is larger than the sum of its proper divisors (214245913714).

428491827422 is a wasteful number, since it uses less digits than its factorization.

428491827422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214245913713.

The product of its digits is 4128768, while the sum is 53.

The spelling of 428491827422 in words is "four hundred twenty-eight billion, four hundred ninety-one million, eight hundred twenty-seven thousand, four hundred twenty-two".