428168587430 has 16 divisors (see below), whose sum is σ = 788626794384. Its totient is φ = 167284471200.

The previous prime is 428168587403. The next prime is 428168587459. The reversal of 428168587430 is 34785861824.

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, 497870021 + ... + 497870880.

It is an arithmetic number, because the mean of its divisors is an integer number (49289174649).

Almost surely, 2^428168587430 is an apocalyptic number.

428168587430 is a deficient number, since it is larger than the sum of its proper divisors (360458206954).

428168587430 is a wasteful number, since it uses less digits than its factorization.

428168587430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995740951.

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 428168587430 in words is "four hundred twenty-eight billion, one hundred sixty-eight million, five hundred eighty-seven thousand, four hundred thirty".