194909888196 has 45 divisors (see below), whose sum is σ = 509553723679. Its totient is φ = 64967313816.

The previous prime is 194909888189. The next prime is 194909888221. The reversal of 194909888196 is 691888909491.

The square root of 194909888196 is 441486.

It is a perfect power (a square), and thus also a powerful number.

194909888196 is a `hidden beast` number, since 194 + 90 + 98 + 88 + 196 = 666.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7934485 + ... + 7959011.

Almost surely, 2^194909888196 is an apocalyptic number.

194909888196 is the 441486-th square number.

It is an amenable number.

194909888196 is an abundant number, since it is smaller than the sum of its proper divisors (314643835483).

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

194909888196 is an frugal number, since it uses more digits than its factorization.

194909888196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49070 (or 24532 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 72.

The spelling of 194909888196 in words is "one hundred ninety-four billion, nine hundred nine million, eight hundred eighty-eight thousand, one hundred ninety-six".