428525212776 has 16 divisors (see below), whose sum is σ = 1071313032000. Its totient is φ = 142841737584.

The previous prime is 428525212751. The next prime is 428525212781. The reversal of 428525212776 is 677212525824.

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, 8927608576 + ... + 8927608623.

It is an arithmetic number, because the mean of its divisors is an integer number (66957064500).

Almost surely, 2^428525212776 is an apocalyptic number.

It is an amenable number.

428525212776 is an abundant number, since it is smaller than the sum of its proper divisors (642787819224).

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

428525212776 is a wasteful number, since it uses less digits than its factorization.

428525212776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17855217208 (or 17855217204 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 51.

The spelling of 428525212776 in words is "four hundred twenty-eight billion, five hundred twenty-five million, two hundred twelve thousand, seven hundred seventy-six".