11147385947 has 2 divisors, whose sum is σ = 11147385948. Its totient is φ = 11147385946.

The previous prime is 11147385871. The next prime is 11147385989. The reversal of 11147385947 is 74958374111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11147385947 - 2¹² = 11147381851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11147385895 and 11147385904.

It is not a weakly prime, because it can be changed into another prime (11147384947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5573692973 + 5573692974.

It is an arithmetic number, because the mean of its divisors is an integer number (5573692974).

Almost surely, 2^11147385947 is an apocalyptic number.

11147385947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11147385947 is an equidigital number, since it uses as much as digits as its factorization.

11147385947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 50.

The spelling of 11147385947 in words is "eleven billion, one hundred forty-seven million, three hundred eighty-five thousand, nine hundred forty-seven".