9995746181 has 2 divisors, whose sum is σ = 9995746182. Its totient is φ = 9995746180.

The previous prime is 9995746141. The next prime is 9995746217. The reversal of 9995746181 is 1816475999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6567643681 + 3428102500 = 81041^2 + 58550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9995746181 is a prime.

It is a super-2 number, since 2×9995746181² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9995746181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9995746141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997873090 + 4997873091.

It is an arithmetic number, because the mean of its divisors is an integer number (4997873091).

Almost surely, 2^9995746181 is an apocalyptic number.

It is an amenable number.

9995746181 is a deficient number, since it is larger than the sum of its proper divisors (1).

9995746181 is an equidigital number, since it uses as much as digits as its factorization.

9995746181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 59.

The square root of 9995746181 is about 99978.7286426468. The cubic root of 9995746181 is about 2154.1291608650.

The spelling of 9995746181 in words is "nine billion, nine hundred ninety-five million, seven hundred forty-six thousand, one hundred eighty-one".