11945476247 has 2 divisors, whose sum is σ = 11945476248. Its totient is φ = 11945476246.

The previous prime is 11945476223. The next prime is 11945476273. The reversal of 11945476247 is 74267454911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11945476247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11945476195 and 11945476204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11945476847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972738123 + 5972738124.

It is an arithmetic number, because the mean of its divisors is an integer number (5972738124).

Almost surely, 2^11945476247 is an apocalyptic number.

11945476247 is a deficient number, since it is larger than the sum of its proper divisors (1).

11945476247 is an equidigital number, since it uses as much as digits as its factorization.

11945476247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 50.

The spelling of 11945476247 in words is "eleven billion, nine hundred forty-five million, four hundred seventy-six thousand, two hundred forty-seven".