9995897229727 has 2 divisors, whose sum is σ = 9995897229728. Its totient is φ = 9995897229726.

The previous prime is 9995897229709. The next prime is 9995897229751. The reversal of 9995897229727 is 7279227985999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9995897229727 is a prime.

It is a super-2 number, since 2×9995897229727² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9995897229707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997948614863 + 4997948614864.

It is an arithmetic number, because the mean of its divisors is an integer number (4997948614864).

Almost surely, 2^{9995897229727} is an apocalyptic number.

9995897229727 is a deficient number, since it is larger than the sum of its proper divisors (1).

9995897229727 is an equidigital number, since it uses as much as digits as its factorization.

9995897229727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6481218240, while the sum is 85.

The spelling of 9995897229727 in words is "nine trillion, nine hundred ninety-five billion, eight hundred ninety-seven million, two hundred twenty-nine thousand, seven hundred twenty-seven".