199927085028 has 48 divisors (see below), whose sum is σ = 509013313536. Its totient is φ = 60571107360.

The previous prime is 199927084997. The next prime is 199927085041. The reversal of 199927085028 is 820580729991.

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, 473025 + ... + 789687.

It is an arithmetic number, because the mean of its divisors is an integer number (10604444032).

Almost surely, 2^199927085028 is an apocalyptic number.

It is an amenable number.

199927085028 is an abundant number, since it is smaller than the sum of its proper divisors (309086228508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199927085028 is a wasteful number, since it uses less digits than its factorization.

199927085028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321464 (or 321462 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 60.

The spelling of 199927085028 in words is "one hundred ninety-nine billion, nine hundred twenty-seven million, eighty-five thousand, twenty-eight".