316618380487 has 4 divisors (see below), whose sum is σ = 317197208056. Its totient is φ = 316039552920.

The previous prime is 316618380457. The next prime is 316618380509. The reversal of 316618380487 is 784083816613.

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

It is a cyclic number.

It is not a de Polignac number, because 316618380487 - 2²³ = 316609991879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316618380437) 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, 289412964 + ... + 289414057.

It is an arithmetic number, because the mean of its divisors is an integer number (79299302014).

Almost surely, 2^316618380487 is an apocalyptic number.

316618380487 is a deficient number, since it is larger than the sum of its proper divisors (578827569).

316618380487 is an equidigital number, since it uses as much as digits as its factorization.

316618380487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578827568.

The product of its (nonzero) digits is 4644864, while the sum is 55.

It can be divided in two parts, 31661 and 8380487, that added together give a palindrome (8412148).

The spelling of 316618380487 in words is "three hundred sixteen billion, six hundred eighteen million, three hundred eighty thousand, four hundred eighty-seven".