28287146415 has 32 divisors (see below), whose sum is σ = 49381516800. Its totient is φ = 13712872320.

The previous prime is 28287146351. The next prime is 28287146417. The reversal of 28287146415 is 51464178282.

It is a happy number.

It is not a de Polignac number, because 28287146415 - 2⁶ = 28287146351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28287146417) by changing a digit.

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, 1926321 + ... + 1940949.

It is an arithmetic number, because the mean of its divisors is an integer number (1543172400).

Almost surely, 2^28287146415 is an apocalyptic number.

28287146415 is a deficient number, since it is larger than the sum of its proper divisors (21094370385).

28287146415 is a wasteful number, since it uses less digits than its factorization.

28287146415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26367.

The product of its digits is 860160, while the sum is 48.

The spelling of 28287146415 in words is "twenty-eight billion, two hundred eighty-seven million, one hundred forty-six thousand, four hundred fifteen".