28765587002 has 8 divisors (see below), whose sum is σ = 44066431296. Its totient is φ = 14076776572.

The previous prime is 28765586953. The next prime is 28765587007. The reversal of 28765587002 is 20078556782.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (28765587007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153008348 + ... + 153008535.

It is an arithmetic number, because the mean of its divisors is an integer number (5508303912).

Almost surely, 2^28765587002 is an apocalyptic number.

28765587002 is a deficient number, since it is larger than the sum of its proper divisors (15300844294).

28765587002 is a wasteful number, since it uses less digits than its factorization.

28765587002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306016932.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 28765587002 in words is "twenty-eight billion, seven hundred sixty-five million, five hundred eighty-seven thousand, two".