13745471947 has 2 divisors, whose sum is σ = 13745471948. Its totient is φ = 13745471946.

The previous prime is 13745471897. The next prime is 13745471969. The reversal of 13745471947 is 74917454731.

13745471947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13745471947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13745471894 and 13745471903.

It is not a weakly prime, because it can be changed into another prime (13745477947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6872735973 + 6872735974.

It is an arithmetic number, because the mean of its divisors is an integer number (6872735974).

Almost surely, 2^13745471947 is an apocalyptic number.

13745471947 is a deficient number, since it is larger than the sum of its proper divisors (1).

13745471947 is an equidigital number, since it uses as much as digits as its factorization.

13745471947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 52.

The spelling of 13745471947 in words is "thirteen billion, seven hundred forty-five million, four hundred seventy-one thousand, nine hundred forty-seven".