428805466724 has 12 divisors (see below), whose sum is σ = 750684561900. Its totient is φ = 214324163328.

The previous prime is 428805466693. The next prime is 428805466759. The reversal of 428805466724 is 427664508824.

It can be written as a sum of positive squares in 2 ways, for example, as 368427148324 + 60378318400 = 606982^2 + 245720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 428805466724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19630229 + ... + 19652060.

It is an arithmetic number, because the mean of its divisors is an integer number (62557046825).

Almost surely, 2^428805466724 is an apocalyptic number.

It is an amenable number.

428805466724 is a deficient number, since it is larger than the sum of its proper divisors (321879095176).

428805466724 is a wasteful number, since it uses less digits than its factorization.

428805466724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39285022 (or 39285020 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 428805466724 in words is "four hundred twenty-eight billion, eight hundred five million, four hundred sixty-six thousand, seven hundred twenty-four".