428570315307856 has 40 divisors (see below), whose sum is σ = 874832068275200. Its totient is φ = 202827179969280.

The previous prime is 428570315307853. The next prime is 428570315307887. The reversal of 428570315307856 is 658703513075824.

It is a happy number.

It is a super-2 number, since 2×428570315307856² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428570315307853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624001680 + ... + 624688111.

It is an arithmetic number, because the mean of its divisors is an integer number (21870801706880).

Almost surely, 2^{428570315307856} is an apocalyptic number.

It is an amenable number.

428570315307856 is an abundant number, since it is smaller than the sum of its proper divisors (446261752967344).

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

428570315307856 is a wasteful number, since it uses less digits than its factorization.

428570315307856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248690947 (or 1248690941 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 64.

The spelling of 428570315307856 in words is "four hundred twenty-eight trillion, five hundred seventy billion, three hundred fifteen million, three hundred seven thousand, eight hundred fifty-six".