47373472699909 has 2 divisors, whose sum is σ = 47373472699910. Its totient is φ = 47373472699908.

The previous prime is 47373472699871. The next prime is 47373472699939. The reversal of 47373472699909 is 90999627437374.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47307296680900 + 66176019009 = 6878030^2 + 257247^2 .

It is a cyclic number.

It is not a de Polignac number, because 47373472699909 - 2¹¹ = 47373472697861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47373472699939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23686736349954 + 23686736349955.

It is an arithmetic number, because the mean of its divisors is an integer number (23686736349955).

Almost surely, 2^{47373472699909} is an apocalyptic number.

It is an amenable number.

47373472699909 is a deficient number, since it is larger than the sum of its proper divisors (1).

47373472699909 is an equidigital number, since it uses as much as digits as its factorization.

47373472699909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888730944, while the sum is 79.

The spelling of 47373472699909 in words is "forty-seven trillion, three hundred seventy-three billion, four hundred seventy-two million, six hundred ninety-nine thousand, nine hundred nine".