428223553895 has 8 divisors (see below), whose sum is σ = 513889702656. Its totient is φ = 342564551136.

The previous prime is 428223553859. The next prime is 428223553907. The reversal of 428223553895 is 598355322824.

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

It is a cyclic number.

It is not a de Polignac number, because 428223553895 - 2¹² = 428223549799 is a prime.

It is a super-2 number, since 2×428223553895² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428223553895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653767 + ... + 1895096.

It is an arithmetic number, because the mean of its divisors is an integer number (64236212832).

Almost surely, 2^428223553895 is an apocalyptic number.

428223553895 is a deficient number, since it is larger than the sum of its proper divisors (85666148761).

428223553895 is a wasteful number, since it uses less digits than its factorization.

428223553895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573001.

The product of its digits is 20736000, while the sum is 56.

The spelling of 428223553895 in words is "four hundred twenty-eight billion, two hundred twenty-three million, five hundred fifty-three thousand, eight hundred ninety-five".