28821746692 has 12 divisors (see below), whose sum is σ = 50439669840. Its totient is φ = 14410412456.

The previous prime is 28821746689. The next prime is 28821746693. The reversal of 28821746692 is 29664712882.

It is not an unprimeable number, because it can be changed into a prime (28821746693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52659 + ... + 245797.

It is an arithmetic number, because the mean of its divisors is an integer number (4203305820).

Almost surely, 2^28821746692 is an apocalyptic number.

It is an amenable number.

28821746692 is a deficient number, since it is larger than the sum of its proper divisors (21617923148).

28821746692 is a wasteful number, since it uses less digits than its factorization.

28821746692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230450 (or 230448 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 28821746692 in words is "twenty-eight billion, eight hundred twenty-one million, seven hundred forty-six thousand, six hundred ninety-two".