318064645345 has 4 divisors (see below), whose sum is σ = 381677574420. Its totient is φ = 254451716272.

The previous prime is 318064645307. The next prime is 318064645351. The reversal of 318064645345 is 543546460813.

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

It can be written as a sum of positive squares in 2 ways, for example, as 244630149201 + 73434496144 = 494601^2 + 270988^2 .

It is a cyclic number.

It is not a de Polignac number, because 318064645345 - 2¹³ = 318064637153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31806464530 + ... + 31806464539.

It is an arithmetic number, because the mean of its divisors is an integer number (95419393605).

Almost surely, 2^318064645345 is an apocalyptic number.

It is an amenable number.

318064645345 is a deficient number, since it is larger than the sum of its proper divisors (63612929075).

318064645345 is an equidigital number, since it uses as much as digits as its factorization.

318064645345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63612929074.

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 318064645345 in words is "three hundred eighteen billion, sixty-four million, six hundred forty-five thousand, three hundred forty-five".