126380363677 has 2 divisors, whose sum is σ = 126380363678. Its totient is φ = 126380363676.

The previous prime is 126380363671. The next prime is 126380363687. The reversal of 126380363677 is 776363083621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125471099961 + 909263716 = 354219^2 + 30154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126380363677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126380363671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63190181838 + 63190181839.

It is an arithmetic number, because the mean of its divisors is an integer number (63190181839).

Almost surely, 2^126380363677 is an apocalyptic number.

It is an amenable number.

126380363677 is a deficient number, since it is larger than the sum of its proper divisors (1).

126380363677 is an equidigital number, since it uses as much as digits as its factorization.

126380363677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 126380363677 in words is "one hundred twenty-six billion, three hundred eighty million, three hundred sixty-three thousand, six hundred seventy-seven".