319493296194986 has 4 divisors (see below), whose sum is σ = 479239944292482. Its totient is φ = 159746648097492.

The previous prime is 319493296194913. The next prime is 319493296194991. The reversal of 319493296194986 is 689491692394913.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 200313608061961 + 119179688133025 = 14153219^2 + 10916945^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79873324048745 + ... + 79873324048748.

Almost surely, 2^{319493296194986} is an apocalyptic number.

319493296194986 is a deficient number, since it is larger than the sum of its proper divisors (159746648097496).

319493296194986 is a wasteful number, since it uses less digits than its factorization.

319493296194986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159746648097495.

The product of its digits is 4897760256, while the sum is 83.

The spelling of 319493296194986 in words is "three hundred nineteen trillion, four hundred ninety-three billion, two hundred ninety-six million, one hundred ninety-four thousand, nine hundred eighty-six".