28028003055506 has 16 divisors (see below), whose sum is σ = 42123819441600. Its totient is φ = 13986731726928.

The previous prime is 28028003055497. The next prime is 28028003055527. The reversal of 28028003055506 is 60555030082082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31473275 + ... + 32351553.

It is an arithmetic number, because the mean of its divisors is an integer number (2632738715100).

Almost surely, 2^{28028003055506} is an apocalyptic number.

28028003055506 is a deficient number, since it is larger than the sum of its proper divisors (14095816386094).

28028003055506 is a wasteful number, since it uses less digits than its factorization.

28028003055506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909313.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 28028003055506 in words is "twenty-eight trillion, twenty-eight billion, three million, fifty-five thousand, five hundred six".