9611101109947 has 2 divisors, whose sum is σ = 9611101109948. Its totient is φ = 9611101109946.

The previous prime is 9611101109927. The next prime is 9611101109977. The reversal of 9611101109947 is 7499011011169.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9611101109947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9611101109947.

It is not a weakly prime, because it can be changed into another prime (9611101109917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4805550554973 + 4805550554974.

It is an arithmetic number, because the mean of its divisors is an integer number (4805550554974).

Almost surely, 2^{9611101109947} is an apocalyptic number.

9611101109947 is a deficient number, since it is larger than the sum of its proper divisors (1).

9611101109947 is an equidigital number, since it uses as much as digits as its factorization.

9611101109947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 49.

The spelling of 9611101109947 in words is "nine trillion, six hundred eleven billion, one hundred one million, one hundred nine thousand, nine hundred forty-seven".