428464911879 has 12 divisors (see below), whose sum is σ = 618961957432. Its totient is φ = 285611799600.

The previous prime is 428464911869. The next prime is 428464911881. The reversal of 428464911879 is 978119464824.

428464911879 is a `hidden beast` number, since 4 + 2 + 8 + 464 + 91 + 1 + 87 + 9 = 666.

It is not a de Polignac number, because 428464911879 - 2¹³ = 428464903687 is a prime.

It is a super-3 number, since 3×428464911879³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428464911829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2536552 + ... + 2700189.

Almost surely, 2^428464911879 is an apocalyptic number.

428464911879 is a deficient number, since it is larger than the sum of its proper divisors (190497045553).

428464911879 is a wasteful number, since it uses less digits than its factorization.

428464911879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245838 (or 5245835 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 428464911879 in words is "four hundred twenty-eight billion, four hundred sixty-four million, nine hundred eleven thousand, eight hundred seventy-nine".