28728362676 has 24 divisors (see below), whose sum is σ = 72189219424. Its totient is φ = 8839496160.

The previous prime is 28728362629. The next prime is 28728362731. The reversal of 28728362676 is 67626382782.

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, 92077930 + ... + 92078241.

Almost surely, 2^28728362676 is an apocalyptic number.

28728362676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28728362676 is an abundant number, since it is smaller than the sum of its proper divisors (43460856748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28728362676 is a wasteful number, since it uses less digits than its factorization.

28728362676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184156191 (or 184156189 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 57.

The spelling of 28728362676 in words is "twenty-eight billion, seven hundred twenty-eight million, three hundred sixty-two thousand, six hundred seventy-six".