126129790204697 has 2 divisors, whose sum is σ = 126129790204698. Its totient is φ = 126129790204696.

The previous prime is 126129790204679. The next prime is 126129790204723. The reversal of 126129790204697 is 796402097921621.

Together with previous prime (126129790204679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78416178694681 + 47713611510016 = 8855291^2 + 6907504^2 .

It is a cyclic number.

It is not a de Polignac number, because 126129790204697 - 2¹⁰ = 126129790203673 is a prime.

It is not a weakly prime, because it can be changed into another prime (126129790204997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63064895102348 + 63064895102349.

It is an arithmetic number, because the mean of its divisors is an integer number (63064895102349).

Almost surely, 2^{126129790204697} is an apocalyptic number.

It is an amenable number.

126129790204697 is a deficient number, since it is larger than the sum of its proper divisors (1).

126129790204697 is an equidigital number, since it uses as much as digits as its factorization.

126129790204697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41150592, while the sum is 65.

The spelling of 126129790204697 in words is "one hundred twenty-six trillion, one hundred twenty-nine billion, seven hundred ninety million, two hundred four thousand, six hundred ninety-seven".