124788773693 has 2 divisors, whose sum is σ = 124788773694. Its totient is φ = 124788773692.

The previous prime is 124788773687. The next prime is 124788773731. The reversal of 124788773693 is 396377887421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85789238404 + 38999535289 = 292898^2 + 197483^2 .

It is a cyclic number.

It is not a de Polignac number, because 124788773693 - 2¹⁶ = 124788708157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124788773653) 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, 62394386846 + 62394386847.

It is an arithmetic number, because the mean of its divisors is an integer number (62394386847).

Almost surely, 2^124788773693 is an apocalyptic number.

It is an amenable number.

124788773693 is a deficient number, since it is larger than the sum of its proper divisors (1).

124788773693 is an equidigital number, since it uses as much as digits as its factorization.

124788773693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85349376, while the sum is 65.

The spelling of 124788773693 in words is "one hundred twenty-four billion, seven hundred eighty-eight million, seven hundred seventy-three thousand, six hundred ninety-three".