126711889907 has 2 divisors, whose sum is σ = 126711889908. Its totient is φ = 126711889906.

The previous prime is 126711889897. The next prime is 126711889937. The reversal of 126711889907 is 709988117621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126711889907 is a prime.

It is not a weakly prime, because it can be changed into another prime (126711889937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63355944953 + 63355944954.

It is an arithmetic number, because the mean of its divisors is an integer number (63355944954).

Almost surely, 2^126711889907 is an apocalyptic number.

126711889907 is a deficient number, since it is larger than the sum of its proper divisors (1).

126711889907 is an equidigital number, since it uses as much as digits as its factorization.

126711889907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 59.

The spelling of 126711889907 in words is "one hundred twenty-six billion, seven hundred eleven million, eight hundred eighty-nine thousand, nine hundred seven".