28128310255202 has 32 divisors (see below), whose sum is σ = 45056093184000. Its totient is φ = 13140931608000.

The previous prime is 28128310255193. The next prime is 28128310255219. The reversal of 28128310255202 is 20255201382182.

It is a self number, because there is not a number n which added to its sum of digits gives 28128310255202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183587327 + ... + 183740477.

It is an arithmetic number, because the mean of its divisors is an integer number (1408002912000).

Almost surely, 2^{28128310255202} is an apocalyptic number.

28128310255202 is a deficient number, since it is larger than the sum of its proper divisors (16927782928798).

28128310255202 is a wasteful number, since it uses less digits than its factorization.

28128310255202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255362.

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 28128310255202 in words is "twenty-eight trillion, one hundred twenty-eight billion, three hundred ten million, two hundred fifty-five thousand, two hundred two".