12305717043757 has 2 divisors, whose sum is σ = 12305717043758. Its totient is φ = 12305717043756.

The previous prime is 12305717043679. The next prime is 12305717043761. The reversal of 12305717043757 is 75734071750321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7312016197476 + 4993700846281 = 2704074^2 + 2234659^2 .

It is a cyclic number.

It is not a de Polignac number, because 12305717043757 - 2¹⁵ = 12305717010989 is a prime.

It is a super-2 number, since 2×12305717043757² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12305717043787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152858521878 + 6152858521879.

It is an arithmetic number, because the mean of its divisors is an integer number (6152858521879).

Almost surely, 2^{12305717043757} is an apocalyptic number.

It is an amenable number.

12305717043757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12305717043757 is an equidigital number, since it uses as much as digits as its factorization.

12305717043757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 12305717043757 in words is "twelve trillion, three hundred five billion, seven hundred seventeen million, forty-three thousand, seven hundred fifty-seven".