9995590789 has 2 divisors, whose sum is σ = 9995590790. Its totient is φ = 9995590788.

The previous prime is 9995590733. The next prime is 9995590817. The reversal of 9995590789 is 9870955999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9654634564 + 340956225 = 98258^2 + 18465^2 .

It is a cyclic number.

It is not a de Polignac number, because 9995590789 - 2²⁷ = 9861373061 is a prime.

It is a super-2 number, since 2×9995590789² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9995590729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997795394 + 4997795395.

It is an arithmetic number, because the mean of its divisors is an integer number (4997795395).

Almost surely, 2^9995590789 is an apocalyptic number.

It is an amenable number.

9995590789 is a deficient number, since it is larger than the sum of its proper divisors (1).

9995590789 is an equidigital number, since it uses as much as digits as its factorization.

9995590789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82668600, while the sum is 70.

The square root of 9995590789 is about 99977.9515143214. The cubic root of 9995590789 is about 2154.1179982442.

The spelling of 9995590789 in words is "nine billion, nine hundred ninety-five million, five hundred ninety thousand, seven hundred eighty-nine".