316316321378 has 8 divisors (see below), whose sum is σ = 502384745772. Its totient is φ = 148854739456.

The previous prime is 316316321369. The next prime is 316316321381. The reversal of 316316321378 is 873123613613.

It can be written as a sum of positive squares in 2 ways, for example, as 269156552809 + 47159768569 = 518803^2 + 217163^2 .

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

It is a super-2 number, since 2×316316321378² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 4651710575 + ... + 4651710642.

Almost surely, 2^316316321378 is an apocalyptic number.

316316321378 is a deficient number, since it is larger than the sum of its proper divisors (186068424394).

316316321378 is a wasteful number, since it uses less digits than its factorization.

316316321378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303421236.

The product of its digits is 326592, while the sum is 44.

The spelling of 316316321378 in words is "three hundred sixteen billion, three hundred sixteen million, three hundred twenty-one thousand, three hundred seventy-eight".