126698203297 has 2 divisors, whose sum is σ = 126698203298. Its totient is φ = 126698203296.

The previous prime is 126698203283. The next prime is 126698203339. The reversal of 126698203297 is 792302896621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73986176016 + 52712027281 = 272004^2 + 229591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126698203297 is a prime.

It is not a weakly prime, because it can be changed into another prime (126698203217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63349101648 + 63349101649.

It is an arithmetic number, because the mean of its divisors is an integer number (63349101649).

Almost surely, 2^126698203297 is an apocalyptic number.

It is an amenable number.

126698203297 is a deficient number, since it is larger than the sum of its proper divisors (1).

126698203297 is an equidigital number, since it uses as much as digits as its factorization.

126698203297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 126698203297 in words is "one hundred twenty-six billion, six hundred ninety-eight million, two hundred three thousand, two hundred ninety-seven".