428888845719 has 12 divisors (see below), whose sum is σ = 621194142816. Its totient is φ = 285146805312.

The previous prime is 428888845711. The next prime is 428888845733. The reversal of 428888845719 is 917548888824.

428888845719 is a `hidden beast` number, since 4 + 2 + 8 + 88 + 88 + 457 + 19 = 666.

It is not a de Polignac number, because 428888845719 - 2³ = 428888845711 is a prime.

It is a super-2 number, since 2×428888845719² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428888845711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64920834 + ... + 64927439.

It is an arithmetic number, because the mean of its divisors is an integer number (51766178568).

Almost surely, 2^428888845719 is an apocalyptic number.

428888845719 is a deficient number, since it is larger than the sum of its proper divisors (192305297097).

428888845719 is a wasteful number, since it uses less digits than its factorization.

428888845719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129848646 (or 129848643 counting only the distinct ones).

The product of its digits is 330301440, while the sum is 72.

The spelling of 428888845719 in words is "four hundred twenty-eight billion, eight hundred eighty-eight million, eight hundred forty-five thousand, seven hundred nineteen".