28865571552430 has 16 divisors (see below), whose sum is σ = 52076384220960. Its totient is φ = 11519927415072.

The previous prime is 28865571552409. The next prime is 28865571552431. The reversal of 28865571552430 is 3425517556882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28865571552431) 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, 3287646129 + ... + 3287654908.

It is an arithmetic number, because the mean of its divisors is an integer number (3254774013810).

Almost surely, 2^{28865571552430} is an apocalyptic number.

28865571552430 is a deficient number, since it is larger than the sum of its proper divisors (23210812668530).

28865571552430 is a wasteful number, since it uses less digits than its factorization.

28865571552430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575301483.

The product of its (nonzero) digits is 80640000, while the sum is 61.

The spelling of 28865571552430 in words is "twenty-eight trillion, eight hundred sixty-five billion, five hundred seventy-one million, five hundred fifty-two thousand, four hundred thirty".