28365685802 has 8 divisors (see below), whose sum is σ = 42803310816. Its totient is φ = 14097915532.

The previous prime is 28365685793. The next prime is 28365685849. The reversal of 28365685802 is 20858656382.

It is a happy number.

28365685802 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28365685802² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42463268 + ... + 42463935.

It is an arithmetic number, because the mean of its divisors is an integer number (5350413852).

Almost surely, 2^28365685802 is an apocalyptic number.

28365685802 is a deficient number, since it is larger than the sum of its proper divisors (14437625014).

28365685802 is a wasteful number, since it uses less digits than its factorization.

28365685802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84927372.

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 28365685802 in words is "twenty-eight billion, three hundred sixty-five million, six hundred eighty-five thousand, eight hundred two".