28828365251 has 8 divisors (see below), whose sum is σ = 32949675360. Its totient is φ = 24707798208.

The previous prime is 28828365233. The next prime is 28828365287. The reversal of 28828365251 is 15256382882.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28828365251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28828365251.

It is not an unprimeable number, because it can be changed into a prime (28828365551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99986 + ... + 260103.

It is an arithmetic number, because the mean of its divisors is an integer number (4118709420).

Almost surely, 2^28828365251 is an apocalyptic number.

28828365251 is a deficient number, since it is larger than the sum of its proper divisors (4121310109).

28828365251 is a wasteful number, since it uses less digits than its factorization.

28828365251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371533.

The product of its digits is 1843200, while the sum is 50.

The spelling of 28828365251 in words is "twenty-eight billion, eight hundred twenty-eight million, three hundred sixty-five thousand, two hundred fifty-one".