428309315813284 has 24 divisors (see below), whose sum is σ = 773761498223616. Its totient is φ = 207235342104000.

The previous prime is 428309315813213. The next prime is 428309315813329. The reversal of 428309315813284 is 482318513903824.

It is a happy 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, 90184057 + ... + 94814464.

It is an arithmetic number, because the mean of its divisors is an integer number (32240062425984).

Almost surely, 2^{428309315813284} is an apocalyptic number.

It is an amenable number.

428309315813284 is a deficient number, since it is larger than the sum of its proper divisors (345452182410332).

428309315813284 is a wasteful number, since it uses less digits than its factorization.

428309315813284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185017227 (or 185017225 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 428309315813284 in words is "four hundred twenty-eight trillion, three hundred nine billion, three hundred fifteen million, eight hundred thirteen thousand, two hundred eighty-four".