31268486471 has 2 divisors, whose sum is σ = 31268486472. Its totient is φ = 31268486470.

The previous prime is 31268486441. The next prime is 31268486503. The reversal of 31268486471 is 17468486213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31268486471 - 2²² = 31264292167 is a prime.

It is a super-3 number, since 3×31268486471³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31268486411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15634243235 + 15634243236.

It is an arithmetic number, because the mean of its divisors is an integer number (15634243236).

Almost surely, 2^31268486471 is an apocalyptic number.

31268486471 is a deficient number, since it is larger than the sum of its proper divisors (1).

31268486471 is an equidigital number, since it uses as much as digits as its factorization.

31268486471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 50.

The spelling of 31268486471 in words is "thirty-one billion, two hundred sixty-eight million, four hundred eighty-six thousand, four hundred seventy-one".