501272314349 has 2 divisors, whose sum is σ = 501272314350. Its totient is φ = 501272314348.

The previous prime is 501272314343. The next prime is 501272314421. The reversal of 501272314349 is 943413272105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325535290249 + 175737024100 = 570557^2 + 419210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501272314349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501272314343) 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, 250636157174 + 250636157175.

It is an arithmetic number, because the mean of its divisors is an integer number (250636157175).

Almost surely, 2^501272314349 is an apocalyptic number.

It is an amenable number.

501272314349 is a deficient number, since it is larger than the sum of its proper divisors (1).

501272314349 is an equidigital number, since it uses as much as digits as its factorization.

501272314349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 501272314349 in words is "five hundred one billion, two hundred seventy-two million, three hundred fourteen thousand, three hundred forty-nine".