126005018766749 has 2 divisors, whose sum is σ = 126005018766750. Its totient is φ = 126005018766748.

The previous prime is 126005018766707. The next prime is 126005018766761. The reversal of 126005018766749 is 947667810500621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66657917224900 + 59347101541849 = 8164430^2 + 7703707^2 .

It is a cyclic number.

It is not a de Polignac number, because 126005018766749 - 2⁸ = 126005018766493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126005018766691 and 126005018766700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126005018766049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63002509383374 + 63002509383375.

It is an arithmetic number, because the mean of its divisors is an integer number (63002509383375).

Almost surely, 2^{126005018766749} is an apocalyptic number.

It is an amenable number.

126005018766749 is a deficient number, since it is larger than the sum of its proper divisors (1).

126005018766749 is an equidigital number, since it uses as much as digits as its factorization.

126005018766749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 126005018766749 in words is "one hundred twenty-six trillion, five billion, eighteen million, seven hundred sixty-six thousand, seven hundred forty-nine".