428552913468 has 12 divisors (see below), whose sum is σ = 999956798120. Its totient is φ = 142850971152.

The previous prime is 428552913463. The next prime is 428552913479. The reversal of 428552913468 is 864319255824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×428552913468² (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 (428552913463) 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, 17856371383 + ... + 17856371406.

Almost surely, 2^428552913468 is an apocalyptic number.

It is an amenable number.

428552913468 is an abundant number, since it is smaller than the sum of its proper divisors (571403884652).

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

428552913468 is a wasteful number, since it uses less digits than its factorization.

428552913468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35712742796 (or 35712742794 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 428552913468 in words is "four hundred twenty-eight billion, five hundred fifty-two million, nine hundred thirteen thousand, four hundred sixty-eight".