315631547947 has 8 divisors (see below), whose sum is σ = 326126827520. Its totient is φ = 305155869480.

The previous prime is 315631547939. The next prime is 315631547981. The reversal of 315631547947 is 749745136513.

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 315631547947 - 2³ = 315631547939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315631517947) 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, 4867533 + ... + 4931950.

It is an arithmetic number, because the mean of its divisors is an integer number (40765853440).

Almost surely, 2^315631547947 is an apocalyptic number.

315631547947 is a deficient number, since it is larger than the sum of its proper divisors (10495279573).

315631547947 is a wasteful number, since it uses less digits than its factorization.

315631547947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800553.

The product of its digits is 9525600, while the sum is 55.

The spelling of 315631547947 in words is "three hundred fifteen billion, six hundred thirty-one million, five hundred forty-seven thousand, nine hundred forty-seven".