28442416275 has 288 divisors, whose sum is σ = 67742539200. Its totient is φ = 11583129600.

The previous prime is 28442416241. The next prime is 28442416283. The reversal of 28442416275 is 57261424482.

28442416275 is a `hidden beast` number, since 284 + 4 + 241 + 62 + 75 = 666.

It is not a de Polignac number, because 28442416275 - 2⁸ = 28442416019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28442416275.

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 287 ways as a sum of consecutive naturals, for example, 12468135 + ... + 12470415.

It is an arithmetic number, because the mean of its divisors is an integer number (235217150).

Almost surely, 2^28442416275 is an apocalyptic number.

28442416275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28442416275 is an abundant number, since it is smaller than the sum of its proper divisors (39300122925).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28442416275 is a wasteful number, since it uses less digits than its factorization.

28442416275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356 (or 2338 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The spelling of 28442416275 in words is "twenty-eight billion, four hundred forty-two million, four hundred sixteen thousand, two hundred seventy-five".