317123436544 has 28 divisors (see below), whose sum is σ = 634208178114. Its totient is φ = 158561714176.

The previous prime is 317123436541. The next prime is 317123436557. The reversal of 317123436544 is 445634321713.

It can be written as a sum of positive squares in only one way, i.e., 237644550144 + 79478886400 = 487488^2 + 281920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 317123436544.

It is not an unprimeable number, because it can be changed into a prime (317123436541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19347487 + ... + 19363870.

Almost surely, 2^317123436544 is an apocalyptic number.

It is an amenable number.

317123436544 is a deficient number, since it is larger than the sum of its proper divisors (317084741570).

317123436544 is an frugal number, since it uses more digits than its factorization.

317123436544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38711383 (or 38711359 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The spelling of 317123436544 in words is "three hundred seventeen billion, one hundred twenty-three million, four hundred thirty-six thousand, five hundred forty-four".