428194355256524 has 24 divisors (see below), whose sum is σ = 749837814652080. Its totient is φ = 213954981776384.

The previous prime is 428194355256457. The next prime is 428194355256529. The reversal of 428194355256524 is 425652553491824.

It is not an unprimeable number, because it can be changed into a prime (428194355256529) 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, 1483093172 + ... + 1483381860.

It is an arithmetic number, because the mean of its divisors is an integer number (31243242277170).

Almost surely, 2^{428194355256524} is an apocalyptic number.

It is an amenable number.

428194355256524 is a deficient number, since it is larger than the sum of its proper divisors (321643459395556).

428194355256524 is a wasteful number, since it uses less digits than its factorization.

428194355256524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533689 (or 533687 counting only the distinct ones).

The product of its digits is 414720000, while the sum is 65.

The spelling of 428194355256524 in words is "four hundred twenty-eight trillion, one hundred ninety-four billion, three hundred fifty-five million, two hundred fifty-six thousand, five hundred twenty-four".