194886564 has 12 divisors (see below), whose sum is σ = 454735344. Its totient is φ = 64962184.

The previous prime is 194886547. The next prime is 194886577. The reversal of 194886564 is 465688491.

194886564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8120262 + ... + 8120285.

It is an arithmetic number, because the mean of its divisors is an integer number (37894612).

Almost surely, 2^194886564 is an apocalyptic number.

It is an amenable number.

194886564 is an abundant number, since it is smaller than the sum of its proper divisors (259848780).

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

194886564 is a wasteful number, since it uses less digits than its factorization.

194886564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16240554 (or 16240552 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 194886564 is about 13960.1777925641. The cubic root of 194886564 is about 579.7765330162.

The spelling of 194886564 in words is "one hundred ninety-four million, eight hundred eighty-six thousand, five hundred sixty-four".