28304228463 has 16 divisors (see below), whose sum is σ = 43148130816. Its totient is φ = 16167140640.

The previous prime is 28304228441. The next prime is 28304228497. The reversal of 28304228463 is 36482240382.

It is a happy number.

It is not a de Polignac number, because 28304228463 - 2⁵ = 28304228431 is a prime.

It is a super-2 number, since 2×28304228463² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28304228423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227248 + ... + 329013.

It is an arithmetic number, because the mean of its divisors is an integer number (2696758176).

Almost surely, 2^28304228463 is an apocalyptic number.

28304228463 is a deficient number, since it is larger than the sum of its proper divisors (14843902353).

28304228463 is a wasteful number, since it uses less digits than its factorization.

28304228463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558694.

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 28304228463 in words is "twenty-eight billion, three hundred four million, two hundred twenty-eight thousand, four hundred sixty-three".