12508193895077 has 2 divisors, whose sum is σ = 12508193895078. Its totient is φ = 12508193895076.

The previous prime is 12508193895073. The next prime is 12508193895091. The reversal of 12508193895077 is 77059839180521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12424539323716 + 83654571361 = 3524846^2 + 289231^2 .

It is a cyclic number.

It is not a de Polignac number, because 12508193895077 - 2² = 12508193895073 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12508193895073) 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, 6254096947538 + 6254096947539.

It is an arithmetic number, because the mean of its divisors is an integer number (6254096947539).

Almost surely, 2^{12508193895077} is an apocalyptic number.

It is an amenable number.

12508193895077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12508193895077 is an equidigital number, since it uses as much as digits as its factorization.

12508193895077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38102400, while the sum is 65.

The spelling of 12508193895077 in words is "twelve trillion, five hundred eight billion, one hundred ninety-three million, eight hundred ninety-five thousand, seventy-seven".