126128522907 has 6 divisors (see below), whose sum is σ = 182185644212. Its totient is φ = 84085681932.

The previous prime is 126128522887. The next prime is 126128522939. The reversal of 126128522907 is 709225821621.

126128522907 is a `hidden beast` number, since 1 + 2 + 612 + 8 + 5 + 2 + 29 + 0 + 7 = 666.

It is not a de Polignac number, because 126128522907 - 2²⁷ = 125994305179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126128522987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7007140153 + ... + 7007140170.

Almost surely, 2^126128522907 is an apocalyptic number.

126128522907 is a deficient number, since it is larger than the sum of its proper divisors (56057121305).

126128522907 is a wasteful number, since it uses less digits than its factorization.

126128522907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014280329 (or 14014280326 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 126128522907 in words is "one hundred twenty-six billion, one hundred twenty-eight million, five hundred twenty-two thousand, nine hundred seven".