126770276209 has 2 divisors, whose sum is σ = 126770276210. Its totient is φ = 126770276208.

The previous prime is 126770276183. The next prime is 126770276231. The reversal of 126770276209 is 902672077621.

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., 126769466209 + 810000 = 356047^2 + 900^2 .

It is a cyclic number.

It is not a de Polignac number, because 126770276209 - 2¹¹ = 126770274161 is a prime.

It is not a weakly prime, because it can be changed into another prime (126770276249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63385138104 + 63385138105.

It is an arithmetic number, because the mean of its divisors is an integer number (63385138105).

Almost surely, 2^126770276209 is an apocalyptic number.

It is an amenable number.

126770276209 is a deficient number, since it is larger than the sum of its proper divisors (1).

126770276209 is an equidigital number, since it uses as much as digits as its factorization.

126770276209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 126770276209 in words is "one hundred twenty-six billion, seven hundred seventy million, two hundred seventy-six thousand, two hundred nine".