318000644947 has 8 divisors (see below), whose sum is σ = 342226346112. Its totient is φ = 294388252800.

The previous prime is 318000644903. The next prime is 318000644963. The reversal of 318000644947 is 749446000813.

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

It is a cyclic number.

It is not a de Polignac number, because 318000644947 - 2¹¹ = 318000642899 is a prime.

It is a super-2 number, since 2×318000644947² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318000644897 and 318000644906.

It is not an unprimeable number, because it can be changed into a prime (318000644347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153326179 + ... + 153328252.

It is an arithmetic number, because the mean of its divisors is an integer number (42778293264).

Almost surely, 2^318000644947 is an apocalyptic number.

318000644947 is a deficient number, since it is larger than the sum of its proper divisors (24225701165).

318000644947 is a wasteful number, since it uses less digits than its factorization.

318000644947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306654509.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 318000644947 in words is "three hundred eighteen billion, six hundred forty-four thousand, nine hundred forty-seven".