9126909947 has 2 divisors, whose sum is σ = 9126909948. Its totient is φ = 9126909946.

The previous prime is 9126909923. The next prime is 9126909983. The reversal of 9126909947 is 7499096219.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9126909947 - 2²² = 9122715643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9126909892 and 9126909901.

It is not a weakly prime, because it can be changed into another prime (9126909907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4563454973 + 4563454974.

It is an arithmetic number, because the mean of its divisors is an integer number (4563454974).

Almost surely, 2^9126909947 is an apocalyptic number.

9126909947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9126909947 is an equidigital number, since it uses as much as digits as its factorization.

9126909947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 9126909947 is about 95534.8624691531. The cubic root of 9126909947 is about 2089.8153837523.

The spelling of 9126909947 in words is "nine billion, one hundred twenty-six million, nine hundred nine thousand, nine hundred forty-seven".