428144519742 has 16 divisors (see below), whose sum is σ = 877174138512. Its totient is φ = 139233990080.

The previous prime is 428144519731. The next prime is 428144519753. The reversal of 428144519742 is 247915441824.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (428144519731) and next prime (428144519753).

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, 870212193 + ... + 870212684.

It is an arithmetic number, because the mean of its divisors is an integer number (54823383657).

Almost surely, 2^428144519742 is an apocalyptic number.

428144519742 is an abundant number, since it is smaller than the sum of its proper divisors (449029618770).

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

428144519742 is a wasteful number, since it uses less digits than its factorization.

428144519742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740424923.

The product of its digits is 2580480, while the sum is 51.

The spelling of 428144519742 in words is "four hundred twenty-eight billion, one hundred forty-four million, five hundred nineteen thousand, seven hundred forty-two".