428019363529 has 4 divisors (see below), whose sum is σ = 428046015940. Its totient is φ = 427992711120.

The previous prime is 428019363521. The next prime is 428019363553. The reversal of 428019363529 is 925363910824.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89496705600 + 338522657929 = 299160^2 + 581827^2 .

It is a cyclic number.

It is not a de Polignac number, because 428019363529 - 2³ = 428019363521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428019363521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13302102 + ... + 13334239.

It is an arithmetic number, because the mean of its divisors is an integer number (107011503985).

Almost surely, 2^428019363529 is an apocalyptic number.

It is an amenable number.

428019363529 is a deficient number, since it is larger than the sum of its proper divisors (26652411).

428019363529 is a wasteful number, since it uses less digits than its factorization.

428019363529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26652410.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 428019363529 in words is "four hundred twenty-eight billion, nineteen million, three hundred sixty-three thousand, five hundred twenty-nine".