28767831696 has 200 divisors, whose sum is σ = 84537937440. Its totient is φ = 9443326464.

The previous prime is 28767831641. The next prime is 28767831707. The reversal of 28767831696 is 69613876782.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51097111 + ... + 51097673.

Almost surely, 2^28767831696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28767831696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42268968720).

28767831696 is an abundant number, since it is smaller than the sum of its proper divisors (55770105744).

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

28767831696 is a wasteful number, since it uses less digits than its factorization.

28767831696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115 (or 1100 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 28767831696 in words is "twenty-eight billion, seven hundred sixty-seven million, eight hundred thirty-one thousand, six hundred ninety-six".