317157897074 has 8 divisors (see below), whose sum is σ = 480641349468. Its totient is φ = 156944113920.

The previous prime is 317157897073. The next prime is 317157897097. The reversal of 317157897074 is 470798751713.

It can be written as a sum of positive squares in 2 ways, for example, as 276105058849 + 41052838225 = 525457^2 + 202615^2 .

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

It is a super-2 number, since 2×317157897074² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317157897073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817417067 + ... + 817417454.

Almost surely, 2^317157897074 is an apocalyptic number.

317157897074 is a deficient number, since it is larger than the sum of its proper divisors (163483452394).

317157897074 is a wasteful number, since it uses less digits than its factorization.

317157897074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634834620.

The product of its (nonzero) digits is 10372320, while the sum is 59.

The spelling of 317157897074 in words is "three hundred seventeen billion, one hundred fifty-seven million, eight hundred ninety-seven thousand, seventy-four".