28640848420202 has 8 divisors (see below), whose sum is σ = 43478878324896. Its totient is φ = 14147888978572.

The previous prime is 28640848420183. The next prime is 28640848420213. The reversal of 28640848420202 is 20202484804682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86267615558 + ... + 86267615889.

It is an arithmetic number, because the mean of its divisors is an integer number (5434859790612).

Almost surely, 2^{28640848420202} is an apocalyptic number.

28640848420202 is a deficient number, since it is larger than the sum of its proper divisors (14838029904694).

28640848420202 is a wasteful number, since it uses less digits than its factorization.

28640848420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172535231532.

The product of its (nonzero) digits is 3145728, while the sum is 50.

The spelling of 28640848420202 in words is "twenty-eight trillion, six hundred forty billion, eight hundred forty-eight million, four hundred twenty thousand, two hundred two".