124646211993617 has 2 divisors, whose sum is σ = 124646211993618. Its totient is φ = 124646211993616.

The previous prime is 124646211993613. The next prime is 124646211993659. The reversal of 124646211993617 is 716399112646421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77217150954241 + 47429061039376 = 8787329^2 + 6886876^2 .

It is a cyclic number.

It is not a de Polignac number, because 124646211993617 - 2² = 124646211993613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124646211993617.

It is not a weakly prime, because it can be changed into another prime (124646211993613) 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, 62323105996808 + 62323105996809.

It is an arithmetic number, because the mean of its divisors is an integer number (62323105996809).

Almost surely, 2^{124646211993617} is an apocalyptic number.

It is an amenable number.

124646211993617 is a deficient number, since it is larger than the sum of its proper divisors (1).

124646211993617 is an equidigital number, since it uses as much as digits as its factorization.

124646211993617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23514624, while the sum is 62.

The spelling of 124646211993617 in words is "one hundred twenty-four trillion, six hundred forty-six billion, two hundred eleven million, nine hundred ninety-three thousand, six hundred seventeen".