428243364836 has 24 divisors (see below), whose sum is σ = 893725284480. Its totient is φ = 175553180352.

The previous prime is 428243364833. The next prime is 428243364853. The reversal of 428243364836 is 638463342824.

It is not an unprimeable number, because it can be changed into a prime (428243364833) 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, 332486441 + ... + 332487728.

It is an arithmetic number, because the mean of its divisors is an integer number (37238553520).

Almost surely, 2^428243364836 is an apocalyptic number.

428243364836 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

428243364836 is an abundant number, since it is smaller than the sum of its proper divisors (465481919644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428243364836 is a wasteful number, since it uses less digits than its factorization.

428243364836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664974203 (or 664974201 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 53.

The spelling of 428243364836 in words is "four hundred twenty-eight billion, two hundred forty-three million, three hundred sixty-four thousand, eight hundred thirty-six".