21028060028195 has 16 divisors (see below), whose sum is σ = 27566468281440. Its totient is φ = 15271564531200.

The previous prime is 21028060028161. The next prime is 21028060028207. The reversal of 21028060028195 is 59182006082012.

It is not a de Polignac number, because 21028060028195 - 2¹⁴ = 21028060011811 is a prime.

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, 269586086 + ... + 269664075.

It is an arithmetic number, because the mean of its divisors is an integer number (1722904267590).

Almost surely, 2^{21028060028195} is an apocalyptic number.

21028060028195 is a deficient number, since it is larger than the sum of its proper divisors (6538408253245).

21028060028195 is a wasteful number, since it uses less digits than its factorization.

21028060028195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539250886.

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 21028060028195 in words is "twenty-one trillion, twenty-eight billion, sixty million, twenty-eight thousand, one hundred ninety-five".