428835450672 has 60 divisors (see below), whose sum is σ = 1208091689584. Its totient is φ = 141998486400.

The previous prime is 428835450647. The next prime is 428835450683. The reversal of 428835450672 is 276054538824.

428835450672 is a `hidden beast` number, since 4 + 2 + 8 + 83 + 54 + 506 + 7 + 2 = 666.

428835450672 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9839263 + ... + 9882750.

Almost surely, 2^428835450672 is an apocalyptic number.

It is an amenable number.

428835450672 is an abundant number, since it is smaller than the sum of its proper divisors (779256238912).

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

428835450672 is a wasteful number, since it uses less digits than its factorization.

428835450672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19722178 (or 19722169 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 428835450672 in words is "four hundred twenty-eight billion, eight hundred thirty-five million, four hundred fifty thousand, six hundred seventy-two".