126388751263 has 2 divisors, whose sum is σ = 126388751264. Its totient is φ = 126388751262.

The previous prime is 126388751243. The next prime is 126388751267. The reversal of 126388751263 is 362157883621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126388751263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126388751263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126388751267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63194375631 + 63194375632.

It is an arithmetic number, because the mean of its divisors is an integer number (63194375632).

Almost surely, 2^126388751263 is an apocalyptic number.

126388751263 is a deficient number, since it is larger than the sum of its proper divisors (1).

126388751263 is an equidigital number, since it uses as much as digits as its factorization.

126388751263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The spelling of 126388751263 in words is "one hundred twenty-six billion, three hundred eighty-eight million, seven hundred fifty-one thousand, two hundred sixty-three".