428791258816 has 42 divisors (see below), whose sum is σ = 852317119340. Its totient is φ = 214034405760.

The previous prime is 428791258781. The next prime is 428791258823. The reversal of 428791258816 is 618852197824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142406751 + ... + 142409761.

Almost surely, 2^428791258816 is an apocalyptic number.

It is an amenable number.

428791258816 is a deficient number, since it is larger than the sum of its proper divisors (423525860524).

428791258816 is an frugal number, since it uses more digits than its factorization.

428791258816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6773 (or 3752 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 61.

The spelling of 428791258816 in words is "four hundred twenty-eight billion, seven hundred ninety-one million, two hundred fifty-eight thousand, eight hundred sixteen".