316618507823 has 4 divisors (see below), whose sum is σ = 317305316328. Its totient is φ = 315931699320.

The previous prime is 316618507787. The next prime is 316618507831. The reversal of 316618507823 is 328705816613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328705816613 = 47 ⋅6993740779.

It is a cyclic number.

It is not a de Polignac number, because 316618507823 - 2¹² = 316618503727 is a prime.

It is a super-2 number, since 2×316618507823² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316618507123) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 343403561 + ... + 343404482.

It is an arithmetic number, because the mean of its divisors is an integer number (79326329082).

Almost surely, 2^316618507823 is an apocalyptic number.

316618507823 is a deficient number, since it is larger than the sum of its proper divisors (686808505).

316618507823 is an equidigital number, since it uses as much as digits as its factorization.

316618507823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686808504.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 316618507823 in words is "three hundred sixteen billion, six hundred eighteen million, five hundred seven thousand, eight hundred twenty-three".