21828685027588 has 12 divisors (see below), whose sum is σ = 38847659795280. Its totient is φ = 10729353657512.

The previous prime is 21828685027549. The next prime is 21828685027649. The reversal of 21828685027588 is 88572058682812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46247213806 + ... + 46247214277.

It is an arithmetic number, because the mean of its divisors is an integer number (3237304982940).

Almost surely, 2^{21828685027588} is an apocalyptic number.

It is an amenable number.

21828685027588 is a deficient number, since it is larger than the sum of its proper divisors (17018974767692).

21828685027588 is a wasteful number, since it uses less digits than its factorization.

21828685027588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92494428146 (or 92494428144 counting only the distinct ones).

The product of its (nonzero) digits is 275251200, while the sum is 70.

The spelling of 21828685027588 in words is "twenty-one trillion, eight hundred twenty-eight billion, six hundred eighty-five million, twenty-seven thousand, five hundred eighty-eight".