316636328443 has 4 divisors (see below), whose sum is σ = 335261994840. Its totient is φ = 298010662048.

The previous prime is 316636328431. The next prime is 316636328483. The reversal of 316636328443 is 344823636613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344823636613 = 383 ⋅900322811.

It is not a de Polignac number, because 316636328443 - 2¹³ = 316636320251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316636328483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9312833173 + ... + 9312833206.

It is an arithmetic number, because the mean of its divisors is an integer number (83815498710).

Almost surely, 2^316636328443 is an apocalyptic number.

316636328443 is a deficient number, since it is larger than the sum of its proper divisors (18625666397).

316636328443 is a wasteful number, since it uses less digits than its factorization.

316636328443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625666396.

The product of its digits is 4478976, while the sum is 49.

The spelling of 316636328443 in words is "three hundred sixteen billion, six hundred thirty-six million, three hundred twenty-eight thousand, four hundred forty-three".