31648129147 has 2 divisors, whose sum is σ = 31648129148. Its totient is φ = 31648129146.

The previous prime is 31648129127. The next prime is 31648129193. The reversal of 31648129147 is 74192184613.

It is an a-pointer prime, because the next prime (31648129193) can be obtained adding 31648129147 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31648129147 - 2²⁷ = 31513911419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31648129097 and 31648129106.

It is not a weakly prime, because it can be changed into another prime (31648129127) 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, 15824064573 + 15824064574.

It is an arithmetic number, because the mean of its divisors is an integer number (15824064574).

Almost surely, 2^31648129147 is an apocalyptic number.

31648129147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31648129147 is an equidigital number, since it uses as much as digits as its factorization.

31648129147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The spelling of 31648129147 in words is "thirty-one billion, six hundred forty-eight million, one hundred twenty-nine thousand, one hundred forty-seven".