126767172913 has 2 divisors, whose sum is σ = 126767172914. Its totient is φ = 126767172912.

The previous prime is 126767172827. The next prime is 126767172923. The reversal of 126767172913 is 319271767621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124794747169 + 1972425744 = 353263^2 + 44412^2 .

It is a cyclic number.

It is not a de Polignac number, because 126767172913 - 2²⁹ = 126230302001 is a prime.

It is a super-2 number, since 2×126767172913² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126767172923) 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, 63383586456 + 63383586457.

It is an arithmetic number, because the mean of its divisors is an integer number (63383586457).

Almost surely, 2^126767172913 is an apocalyptic number.

It is an amenable number.

126767172913 is a deficient number, since it is larger than the sum of its proper divisors (1).

126767172913 is an equidigital number, since it uses as much as digits as its factorization.

126767172913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 52.

The spelling of 126767172913 in words is "one hundred twenty-six billion, seven hundred sixty-seven million, one hundred seventy-two thousand, nine hundred thirteen".