317140376738 has 4 divisors (see below), whose sum is σ = 475710565110. Its totient is φ = 158570188368.

The previous prime is 317140376731. The next prime is 317140376789. The reversal of 317140376738 is 837673041713.

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

It can be written as a sum of positive squares in only one way, i.e., 311155342969 + 5985033769 = 557813^2 + 77363^2 .

It is not an unprimeable number, because it can be changed into a prime (317140376731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79285094183 + ... + 79285094186.

Almost surely, 2^317140376738 is an apocalyptic number.

317140376738 is a deficient number, since it is larger than the sum of its proper divisors (158570188372).

317140376738 is a wasteful number, since it uses less digits than its factorization.

317140376738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158570188371.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 317140376738 in words is "three hundred seventeen billion, one hundred forty million, three hundred seventy-six thousand, seven hundred thirty-eight".