47185106261 has 2 divisors, whose sum is σ = 47185106262. Its totient is φ = 47185106260.

The previous prime is 47185106201. The next prime is 47185106327. The reversal of 47185106261 is 16260158174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43276480900 + 3908625361 = 208030^2 + 62519^2 .

It is a cyclic number.

It is not a de Polignac number, because 47185106261 - 2¹⁸ = 47184844117 is a prime.

It is a super-2 number, since 2×47185106261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47185106201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23592553130 + 23592553131.

It is an arithmetic number, because the mean of its divisors is an integer number (23592553131).

Almost surely, 2^47185106261 is an apocalyptic number.

It is an amenable number.

47185106261 is a deficient number, since it is larger than the sum of its proper divisors (1).

47185106261 is an equidigital number, since it uses as much as digits as its factorization.

47185106261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 47185106261 in words is "forty-seven billion, one hundred eighty-five million, one hundred six thousand, two hundred sixty-one".