47214138321809 has 2 divisors, whose sum is σ = 47214138321810. Its totient is φ = 47214138321808.

The previous prime is 47214138321799. The next prime is 47214138321817. The reversal of 47214138321809 is 90812383141274.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35844408480400 + 11369729841409 = 5987020^2 + 3371903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47214138321809 is a prime.

It is not a weakly prime, because it can be changed into another prime (47214138321869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23607069160904 + 23607069160905.

It is an arithmetic number, because the mean of its divisors is an integer number (23607069160905).

Almost surely, 2^{47214138321809} is an apocalyptic number.

It is an amenable number.

47214138321809 is a deficient number, since it is larger than the sum of its proper divisors (1).

47214138321809 is an equidigital number, since it uses as much as digits as its factorization.

47214138321809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 47214138321809 in words is "forty-seven trillion, two hundred fourteen billion, one hundred thirty-eight million, three hundred twenty-one thousand, eight hundred nine".