28890300159 has 64 divisors (see below), whose sum is σ = 49954682880. Its totient is φ = 16159253760.

The previous prime is 28890300137. The next prime is 28890300199. The reversal of 28890300159 is 95100309882.

It is a happy number.

It is not a de Polignac number, because 28890300159 - 2⁸ = 28890299903 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28890300199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4574614 + ... + 4580924.

It is an arithmetic number, because the mean of its divisors is an integer number (780541920).

Almost surely, 2^28890300159 is an apocalyptic number.

28890300159 is a deficient number, since it is larger than the sum of its proper divisors (21064382721).

28890300159 is a wasteful number, since it uses less digits than its factorization.

28890300159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6837 (or 6831 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 28890300159 in words is "twenty-eight billion, eight hundred ninety million, three hundred thousand, one hundred fifty-nine".