194861464658 has 8 divisors (see below), whose sum is σ = 334048225152. Its totient is φ = 83512056276.

The previous prime is 194861464613. The next prime is 194861464673. The reversal of 194861464658 is 856464168491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 194861464658.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6959338010 + ... + 6959338037.

It is an arithmetic number, because the mean of its divisors is an integer number (41756028144).

Almost surely, 2^194861464658 is an apocalyptic number.

194861464658 is a deficient number, since it is larger than the sum of its proper divisors (139186760494).

194861464658 is a wasteful number, since it uses less digits than its factorization.

194861464658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13918676056.

The product of its digits is 39813120, while the sum is 62.

The spelling of 194861464658 in words is "one hundred ninety-four billion, eight hundred sixty-one million, four hundred sixty-four thousand, six hundred fifty-eight".