28668003473 has 4 divisors (see below), whose sum is σ = 28670302320. Its totient is φ = 28665704628.

The previous prime is 28668003467. The next prime is 28668003479. The reversal of 28668003473 is 37430086682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (28668003467) and next prime (28668003479).

It is a cyclic number.

It is not a de Polignac number, because 28668003473 - 2²⁴ = 28651226257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28668003479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130615 + ... + 1155692.

It is an arithmetic number, because the mean of its divisors is an integer number (7167575580).

Almost surely, 2^28668003473 is an apocalyptic number.

It is an amenable number.

28668003473 is a deficient number, since it is larger than the sum of its proper divisors (2298847).

28668003473 is a wasteful number, since it uses less digits than its factorization.

28668003473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298846.

The product of its (nonzero) digits is 1161216, while the sum is 47.

The spelling of 28668003473 in words is "twenty-eight billion, six hundred sixty-eight million, three thousand, four hundred seventy-three".