47914548109 has 2 divisors, whose sum is σ = 47914548110. Its totient is φ = 47914548108.

The previous prime is 47914548091. The next prime is 47914548139. The reversal of 47914548109 is 90184541974.

Together with previous prime (47914548091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38089377225 + 9825170884 = 195165^2 + 99122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47914548109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47914548139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23957274054 + 23957274055.

It is an arithmetic number, because the mean of its divisors is an integer number (23957274055).

Almost surely, 2^47914548109 is an apocalyptic number.

It is an amenable number.

47914548109 is a deficient number, since it is larger than the sum of its proper divisors (1).

47914548109 is an equidigital number, since it uses as much as digits as its factorization.

47914548109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 47914548109 in words is "forty-seven billion, nine hundred fourteen million, five hundred forty-eight thousand, one hundred nine".