428065086812 has 24 divisors (see below), whose sum is σ = 818548357872. Its totient is φ = 194257612800.

The previous prime is 428065086781. The next prime is 428065086821. The reversal of 428065086812 is 218680560824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7908389 + ... + 7962332.

It is an arithmetic number, because the mean of its divisors is an integer number (34106181578).

Almost surely, 2^428065086812 is an apocalyptic number.

It is an amenable number.

428065086812 is a deficient number, since it is larger than the sum of its proper divisors (390483271060).

428065086812 is a wasteful number, since it uses less digits than its factorization.

428065086812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15871349 (or 15871347 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 428065086812 in words is "four hundred twenty-eight billion, sixty-five million, eighty-six thousand, eight hundred twelve".