64126931140499 has 2 divisors, whose sum is σ = 64126931140500. Its totient is φ = 64126931140498.

The previous prime is 64126931140463. The next prime is 64126931140673. The reversal of 64126931140499 is 99404113962146.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64126931140499 - 2⁴⁴ = 46534745096083 is a prime.

It is a super-2 number, since 2×64126931140499² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64126931140439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063465570249 + 32063465570250.

It is an arithmetic number, because the mean of its divisors is an integer number (32063465570250).

Almost surely, 2^{64126931140499} is an apocalyptic number.

64126931140499 is a deficient number, since it is larger than the sum of its proper divisors (1).

64126931140499 is an equidigital number, since it uses as much as digits as its factorization.

64126931140499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10077696, while the sum is 59.

The spelling of 64126931140499 in words is "sixty-four trillion, one hundred twenty-six billion, nine hundred thirty-one million, one hundred forty thousand, four hundred ninety-nine".