198127330786 has 32 divisors (see below), whose sum is σ = 378085564800. Its totient is φ = 77192463600.

The previous prime is 198127330763. The next prime is 198127330813. The reversal of 198127330786 is 687033721891.

It is a happy number.

It is a super-3 number, since 3×198127330786³ (a number of 35 digits) contains 333 as substring.

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, 13120425 + ... + 13135516.

It is an arithmetic number, because the mean of its divisors is an integer number (11815173900).

Almost surely, 2^198127330786 is an apocalyptic number.

198127330786 is a deficient number, since it is larger than the sum of its proper divisors (179958234014).

198127330786 is a wasteful number, since it uses less digits than its factorization.

198127330786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26255975 (or 26255961 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 198127330786 in words is "one hundred ninety-eight billion, one hundred twenty-seven million, three hundred thirty thousand, seven hundred eighty-six".