47678107109 has 2 divisors, whose sum is σ = 47678107110. Its totient is φ = 47678107108.

The previous prime is 47678106997. The next prime is 47678107151. The reversal of 47678107109 is 90170187674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46708718884 + 969388225 = 216122^2 + 31135^2 .

It is a cyclic number.

It is not a de Polignac number, because 47678107109 - 2¹⁶ = 47678041573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47678107709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23839053554 + 23839053555.

It is an arithmetic number, because the mean of its divisors is an integer number (23839053555).

Almost surely, 2^47678107109 is an apocalyptic number.

It is an amenable number.

47678107109 is a deficient number, since it is larger than the sum of its proper divisors (1).

47678107109 is an equidigital number, since it uses as much as digits as its factorization.

47678107109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 50.

The spelling of 47678107109 in words is "forty-seven billion, six hundred seventy-eight million, one hundred seven thousand, one hundred nine".