28446226575 has 48 divisors (see below), whose sum is σ = 50911637280. Its totient is φ = 13931642880.

The previous prime is 28446226573. The next prime is 28446226577. The reversal of 28446226575 is 57562264482.

It is an interprime number because it is at equal distance from previous prime (28446226573) and next prime (28446226577).

It is not a de Polignac number, because 28446226575 - 2¹ = 28446226573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28446226573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112591 + ... + 263759.

It is an arithmetic number, because the mean of its divisors is an integer number (1060659110).

Almost surely, 2^28446226575 is an apocalyptic number.

28446226575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28446226575 is a deficient number, since it is larger than the sum of its proper divisors (22465410705).

28446226575 is a wasteful number, since it uses less digits than its factorization.

28446226575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151388 (or 151383 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 51.

The spelling of 28446226575 in words is "twenty-eight billion, four hundred forty-six million, two hundred twenty-six thousand, five hundred seventy-five".