47108459291 has 2 divisors, whose sum is σ = 47108459292. Its totient is φ = 47108459290.

The previous prime is 47108459249. The next prime is 47108459341. The reversal of 47108459291 is 19295480174.

It is a happy number.

It is an a-pointer prime, because the next prime (47108459341) can be obtained adding 47108459291 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47108459291 is a prime.

It is not a weakly prime, because it can be changed into another prime (47108459231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23554229645 + 23554229646.

It is an arithmetic number, because the mean of its divisors is an integer number (23554229646).

Almost surely, 2^47108459291 is an apocalyptic number.

47108459291 is a deficient number, since it is larger than the sum of its proper divisors (1).

47108459291 is an equidigital number, since it uses as much as digits as its factorization.

47108459291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 47108459291 in words is "forty-seven billion, one hundred eight million, four hundred fifty-nine thousand, two hundred ninety-one".