47247746137 has 2 divisors, whose sum is σ = 47247746138. Its totient is φ = 47247746136.

The previous prime is 47247746081. The next prime is 47247746141. The reversal of 47247746137 is 73164774274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47234936896 + 12809241 = 217336^2 + 3579^2 .

It is a cyclic number.

It is not a de Polignac number, because 47247746137 - 2¹⁹ = 47247221849 is a prime.

It is not a weakly prime, because it can be changed into another prime (47247746197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23623873068 + 23623873069.

It is an arithmetic number, because the mean of its divisors is an integer number (23623873069).

Almost surely, 2^47247746137 is an apocalyptic number.

It is an amenable number.

47247746137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47247746137 is an equidigital number, since it uses as much as digits as its factorization.

47247746137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5531904, while the sum is 52.

The spelling of 47247746137 in words is "forty-seven billion, two hundred forty-seven million, seven hundred forty-six thousand, one hundred thirty-seven".