28315168845 has 32 divisors (see below), whose sum is σ = 46000410624. Its totient is φ = 14869915200.

The previous prime is 28315168823. The next prime is 28315168867. The reversal of 28315168845 is 54886151382.

It is an interprime number because it is at equal distance from previous prime (28315168823) and next prime (28315168867).

It is not a de Polignac number, because 28315168845 - 2⁵ = 28315168813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847324 + ... + 880106.

It is an arithmetic number, because the mean of its divisors is an integer number (1437512832).

Almost surely, 2^28315168845 is an apocalyptic number.

It is an amenable number.

28315168845 is a deficient number, since it is larger than the sum of its proper divisors (17685241779).

28315168845 is a wasteful number, since it uses less digits than its factorization.

28315168845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33673.

The product of its digits is 1843200, while the sum is 51.

The spelling of 28315168845 in words is "twenty-eight billion, three hundred fifteen million, one hundred sixty-eight thousand, eight hundred forty-five".