28017627628 has 12 divisors (see below), whose sum is σ = 49035315672. Its totient is φ = 14007537440.

The previous prime is 28017627619. The next prime is 28017627637. The reversal of 28017627628 is 82672671082.

It is an interprime number because it is at equal distance from previous prime (28017627619) and next prime (28017627637).

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 3 ways as a sum of consecutive naturals, for example, 268825 + ... + 358192.

It is an arithmetic number, because the mean of its divisors is an integer number (4086276306).

Almost surely, 2^28017627628 is an apocalyptic number.

It is an amenable number.

28017627628 is a deficient number, since it is larger than the sum of its proper divisors (21017688044).

28017627628 is a wasteful number, since it uses less digits than its factorization.

28017627628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638192 (or 638190 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 28017627628 in words is "twenty-eight billion, seventeen million, six hundred twenty-seven thousand, six hundred twenty-eight".