728654767456828 has 6 divisors (see below), whose sum is σ = 1275145843049456. Its totient is φ = 364327383728412.

The previous prime is 728654767456769. The next prime is 728654767456849. The reversal of 728654767456828 is 828654767456827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91081845932100 + ... + 91081845932107.

Almost surely, 2^{728654767456828} is an apocalyptic number.

It is an amenable number.

728654767456828 is a deficient number, since it is larger than the sum of its proper divisors (546491075592628).

728654767456828 is a wasteful number, since it uses less digits than its factorization.

728654767456828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182163691864211 (or 182163691864209 counting only the distinct ones).

The product of its digits is 60692889600, while the sum is 85.

Subtracting 728654767456828 from its reverse (828654767456827), we obtain a palindrome (99999999999999).

The spelling of 728654767456828 in words is "seven hundred twenty-eight trillion, six hundred fifty-four billion, seven hundred sixty-seven million, four hundred fifty-six thousand, eight hundred twenty-eight".