28331248215 has 32 divisors (see below), whose sum is σ = 46020483072. Its totient is φ = 14880320000.

The previous prime is 28331248201. The next prime is 28331248219. The reversal of 28331248215 is 51284213382.

It is not a de Polignac number, because 28331248215 - 2¹³ = 28331240023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28331248219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955615 + ... + 984815.

It is an arithmetic number, because the mean of its divisors is an integer number (1438140096).

Almost surely, 2^28331248215 is an apocalyptic number.

28331248215 is a deficient number, since it is larger than the sum of its proper divisors (17689234857).

28331248215 is a wasteful number, since it uses less digits than its factorization.

28331248215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30191.

The product of its digits is 92160, while the sum is 39.

The spelling of 28331248215 in words is "twenty-eight billion, three hundred thirty-one million, two hundred forty-eight thousand, two hundred fifteen".