317137640471 has 2 divisors, whose sum is σ = 317137640472. Its totient is φ = 317137640470.

The previous prime is 317137640401. The next prime is 317137640569. The reversal of 317137640471 is 174046731713.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317137640471 - 2²² = 317133446167 is a prime.

It is a super-3 number, since 3×317137640471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317137640401) 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 as a sum of consecutive naturals, namely, 158568820235 + 158568820236.

It is an arithmetic number, because the mean of its divisors is an integer number (158568820236).

Almost surely, 2^317137640471 is an apocalyptic number.

317137640471 is a deficient number, since it is larger than the sum of its proper divisors (1).

317137640471 is an equidigital number, since it uses as much as digits as its factorization.

317137640471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 44.

The spelling of 317137640471 in words is "three hundred seventeen billion, one hundred thirty-seven million, six hundred forty thousand, four hundred seventy-one".