318064645343 has 4 divisors (see below), whose sum is σ = 318072823440. Its totient is φ = 318056467248.

The previous prime is 318064645307. The next prime is 318064645351. The reversal of 318064645343 is 343546460813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343546460813 = 24023 ⋅14300731.

It is a cyclic number.

It is not a de Polignac number, because 318064645343 - 2⁶ = 318064645279 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 (318064645303) 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, 4030430 + ... + 4108587.

It is an arithmetic number, because the mean of its divisors is an integer number (79518205860).

Almost surely, 2^318064645343 is an apocalyptic number.

318064645343 is a deficient number, since it is larger than the sum of its proper divisors (8178097).

318064645343 is an equidigital number, since it uses as much as digits as its factorization.

318064645343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8178096.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 318064645343 in words is "three hundred eighteen billion, sixty-four million, six hundred forty-five thousand, three hundred forty-three".